Class 9 Mathematics Introduction to Euclid’s Geometry Previous Year Style Questions
Previous Year Style Questions for Class 9 Mathematics Introduction to Euclid’s Geometry. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Practice set
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
C. Definitions, axioms, theorems
D. Axioms are assumed true
Answer
D. Axioms are assumed true
Explanation
Axioms are assumed true. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. A theorem is proved
D. Euclid’s postulates include a unique line through two points
Answer
D. Euclid’s postulates include a unique line through two points
Explanation
Euclid’s postulates include a unique line through two points. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Definitions, axioms, theorems
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start
D. Playfair’s version of the parallel postulate is often discussed
Answer
A. Definitions, axioms, theorems
Explanation
Definitions, axioms, theorems. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. A theorem is proved
B. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
C. Use the terms used in the NCERT book; do not replace them with unofficial names
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. A theorem is proved
Explanation
A theorem is proved. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. Playfair’s version of the parallel postulate is often discussed
D. Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry
Answer
C. Playfair’s version of the parallel postulate is often discussed
Explanation
Playfair’s version of the parallel postulate is often discussed. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q6MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. A theorem is proved
B. Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start
C. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Answer
C. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
Explanation
Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q7MCQ1 markEasy
Choose the correct statement related to Textbook first in the chapter Introduction to Euclid’s Geometry.
A. The textbook says the opposite of this statement
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
D. Use the terms used in the NCERT book; do not replace them with unofficial names
Answer
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
Explanation
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q8MCQ1 markEasy
Choose the correct statement related to Keywords in the chapter Introduction to Euclid’s Geometry.
A. This happens only in a laboratory and never in daily life
B. Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Answer
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Explanation
Every chapter ends with keywords or a summary that is useful for one-mark answers. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Introduction to Euclid’s Geometry.
A. This idea is not part of the NCERT chapter
B. Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start
C. Axioms are assumed true
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q10MCQ1 markModerate
Choose the correct statement related to Diagrams in the chapter Introduction to Euclid’s Geometry.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. The textbook says the opposite of this statement
C. Euclid’s postulates include a unique line through two points
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Explanation
If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q11MCQ1 markEasy
Choose the correct statement related to Revision in the chapter Introduction to Euclid’s Geometry.
A. Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start
B. Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry
C. This happens only in a laboratory and never in daily life
D. Definitions, axioms, theorems
Answer
A. Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start
Explanation
Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q12MCQ1 markEasy
Choose the correct statement related to Accuracy in the chapter Introduction to Euclid’s Geometry.
A. This idea is not part of the NCERT chapter
B. Axioms are assumed true
C. Use the terms used in the NCERT book; do not replace them with unofficial names
D. A theorem is proved
Answer
C. Use the terms used in the NCERT book; do not replace them with unofficial names
Explanation
Use the terms used in the NCERT book; do not replace them with unofficial names. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Introduction to Euclid’s Geometry.
A. Playfair’s version of the parallel postulate is often discussed
B. Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry
C. The textbook says the opposite of this statement
D. Euclid’s postulates include a unique line through two points
Answer
B. Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q14MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. This happens only in a laboratory and never in daily life
C. Axioms are assumed true
D. A theorem is proved
Answer
C. Axioms are assumed true
Explanation
Axioms are assumed true. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q15MCQ1 markModerate
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Axioms are assumed true
B. Playfair’s version of the parallel postulate is often discussed
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Euclid’s postulates include a unique line through two points
Answer
D. Euclid’s postulates include a unique line through two points
Explanation
Euclid’s postulates include a unique line through two points. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q16MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Euclid’s postulates include a unique line through two points
C. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
D. Definitions, axioms, theorems
Answer
D. Definitions, axioms, theorems
Explanation
Definitions, axioms, theorems. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Definitions, axioms, theorems
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. A theorem is proved
Answer
D. A theorem is proved
Explanation
A theorem is proved. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q18MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Every chapter ends with keywords or a summary that is useful for one-mark answers
B. Playfair’s version of the parallel postulate is often discussed
C. A theorem is proved
D. Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start
Answer
B. Playfair’s version of the parallel postulate is often discussed
Explanation
Playfair’s version of the parallel postulate is often discussed. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q19MCQ1 markEasy
Choose the correct statement related to Introduction to Euclid’s Geometry in the chapter Introduction to Euclid’s Geometry.
A. Playfair’s version of the parallel postulate is often discussed
B. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
C. Euclid’s postulates include a unique line through two points
D. This topic is only for college
Answer
B. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
Explanation
Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q20MCQ1 markModerate
Choose the correct statement related to Textbook first in the chapter Introduction to Euclid’s Geometry.
A. Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry
Answer
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
Explanation
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q413 Mark3 marksModerateRevision pick
Explain Introduction to Euclid’s Geometry in about three points, with one example.
Answer
Euclid’s postulates include a unique line through two points. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q423 Mark3 marksModerate
Explain Introduction to Euclid’s Geometry in about three points, with one example.
Answer
Definitions, axioms, theorems. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q433 Mark3 marksModerate
Explain Introduction to Euclid’s Geometry in about three points, with one example.
Answer
A theorem is proved. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q443 Mark3 marksDifficult
Explain Introduction to Euclid’s Geometry in about three points, with one example.
Answer
Playfair’s version of the parallel postulate is often discussed. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q453 Mark3 marksModerateRevision pick
Explain Introduction to Euclid’s Geometry in about three points, with one example.
Answer
Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q463 Mark3 marksModerate
Explain Textbook first in about three points, with one example.
Answer
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q473 Mark3 marksModerate
Explain Keywords in about three points, with one example.
Answer
Every chapter ends with keywords or a summary that is useful for one-mark answers. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q483 Mark3 marksDifficult
Explain Examples in about three points, with one example.
Answer
CBSE often tests a concept by asking a daily-life example from the same chapter. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q555 Mark5 marksModerate
Write a long answer on Introduction to Euclid’s Geometry. Include definition, explanation and one application.
Answer
Introduction to Euclid’s Geometry — Definitions, axioms, theorems. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q565 Mark5 marksModerate
Write a long answer on Introduction to Euclid’s Geometry. Include definition, explanation and one application.
Answer
Introduction to Euclid’s Geometry — A theorem is proved. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q575 Mark5 marksDifficultRevision pick
Write a long answer on Introduction to Euclid’s Geometry. Include definition, explanation and one application.
Answer
Introduction to Euclid’s Geometry — Playfair’s version of the parallel postulate is often discussed. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q585 Mark5 marksModerate
Write a long answer on Introduction to Euclid’s Geometry. Include definition, explanation and one application.
Answer
Introduction to Euclid’s Geometry — Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q595 Mark5 marksModerate
Write a long answer on Textbook first. Include definition, explanation and one application.
Answer
Textbook first — Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q605 Mark5 marksDifficult
Write a long answer on Keywords. Include definition, explanation and one application.
Answer
Keywords — Every chapter ends with keywords or a summary that is useful for one-mark answers. Explain the idea in order (definition → working → result). End with one application from daily life or a numerical/diagram if the chapter has one.
Explanation
Long answers are marked for structure. Use headings or numbered steps so the examiner can see each part.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q61Assertion and Reason1 markModerate
Assertion (A): CBSE often tests a concept by asking a daily-life example from the same chapter.
Reason (R): Examples is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q62Assertion and Reason1 markModerate
Assertion (A): If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.
Reason (R): Diagrams is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q63Assertion and Reason1 markModerate
Assertion (A): Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start.
Reason (R): Revision is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q64Assertion and Reason1 markDifficult
Assertion (A): Use the terms used in the NCERT book; do not replace them with unofficial names.
Reason (R): Accuracy is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q65Assertion and Reason1 markModerate
Assertion (A): Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry.
Reason (R): Practice is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q66Assertion and Reason1 markModerate
Assertion (A): Axioms are assumed true.
Reason (R): Introduction to Euclid’s Geometry is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q67Assertion and Reason1 markModerate
Assertion (A): Euclid’s postulates include a unique line through two points.
Reason (R): Introduction to Euclid’s Geometry is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q68Assertion and Reason1 markDifficult
Assertion (A): Definitions, axioms, theorems.
Reason (R): Introduction to Euclid’s Geometry is a key idea in the chapter Introduction to Euclid’s Geometry.
Choose the correct option.
A. Both A and R are true, and R is the correct explanation of A.
B. Both A and R are true, and R is not the correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
Answer
A. Both A and R are true, and R is the correct explanation of A.
Explanation
Read Assertion and Reason separately first. Here both match the textbook idea, and R explains why A is taught in this chapter.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q69Case Based4 marksModerateRevision pick
A student is revising Introduction to Euclid’s Geometry and notes: “A theorem is proved.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Introduction to Euclid’s Geometry.
(ii) A theorem is proved.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q70Case Based4 marksModerate
A student is revising Introduction to Euclid’s Geometry and notes: “Playfair’s version of the parallel postulate is often discussed.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Introduction to Euclid’s Geometry.
(ii) Playfair’s version of the parallel postulate is often discussed.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q71Case Based4 marksModerate
A student is revising Introduction to Euclid’s Geometry and notes: “Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Introduction to Euclid’s Geometry.
(ii) Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q72Case Based4 marksDifficult
A student is revising Introduction to Euclid’s Geometry and notes: “Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Textbook first.
(ii) Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q73Case Based4 marksModerateRevision pick
A student is revising Introduction to Euclid’s Geometry and notes: “Every chapter ends with keywords or a summary that is useful for one-mark answers.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Keywords.
(ii) Every chapter ends with keywords or a summary that is useful for one-mark answers.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q74Case Based4 marksModerate
A student is revising Introduction to Euclid’s Geometry and notes: “CBSE often tests a concept by asking a daily-life example from the same chapter.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Examples.
(ii) CBSE often tests a concept by asking a daily-life example from the same chapter.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q75Case Based4 marksModerate
A student is revising Introduction to Euclid’s Geometry and notes: “If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Diagrams.
(ii) If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q76Case Based4 marksDifficult
A student is revising Introduction to Euclid’s Geometry and notes: “Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start.” Using this case, answer: (i) Name the idea. (ii) State it in your own words. (iii) Give one classroom or daily-life use.
Answer
(i) Revision.
(ii) Write three points from Introduction to Euclid’s Geometry in your own words; that is enough for a short-answer start.
(iii) Apply it in a school experiment, a labelled diagram, or a situation described in the NCERT chapter.
Explanation
Case-based items recycle a short story. Pull the fact out first, then apply it. This is original practice in CBSE case style — not a copied board paper.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q77Competency Based3 marksModerateRevision pick
Competency practice: A classmate can recall the heading Accuracy but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Use the terms used in the NCERT book; do not replace them with unofficial names. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q78Competency Based3 marksDifficult
Competency practice: A classmate can recall the heading Practice but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Mix MCQs with short answers so you remember both facts and explanations from Introduction to Euclid’s Geometry. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q79Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Introduction to Euclid’s Geometry but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Axioms are assumed true. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q80Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Introduction to Euclid’s Geometry but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Euclid’s postulates include a unique line through two points. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q81Competency Based3 marksDifficultRevision pick
Competency practice: A classmate can recall the heading Introduction to Euclid’s Geometry but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Definitions, axioms, theorems. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q82Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Introduction to Euclid’s Geometry but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — A theorem is proved. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q83Competency Based3 marksModerate
Competency practice: A classmate can recall the heading Introduction to Euclid’s Geometry but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Playfair’s version of the parallel postulate is often discussed. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q84Competency Based3 marksDifficult
Competency practice: A classmate can recall the heading Introduction to Euclid’s Geometry but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Introduction to Euclid’s Geometry is an NCERT chapter taught in CBSE Class 9 Mathematics. Step 2: Show one example or diagram from the chapter and ask the classmate to repeat it in their own words.
Explanation
Competency-based items check whether you can use a concept, not only name it. Teach-back is a simple way to prove understanding.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Introduction to Euclid’s Geometry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
How should I use the 100 questions?
Try the question first, then tap Show answer. Mix MCQs with long answers. Revise formulas and diagrams from the textbook alongside this set.
Where are NCERT solutions?
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-9/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Previous Year Style Questions” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
