Class 9 Mathematics Heron’s Formula Most Important Questions
Most Important Questions for Class 9 Mathematics Heron’s Formula. 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 Heron’s Formula in the chapter Heron’s Formula.
A. Heron’s Formula is an NCERT chapter taught in CBSE Class 9 Mathematics
B. Useful when height is not given
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. s = (a+b+c)/2 is semi-perimeter
Answer
D. s = (a+b+c)/2 is semi-perimeter
Explanation
s = (a+b+c)/2 is semi-perimeter. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Heron’s Formula in the chapter Heron’s Formula.
A. Mix MCQs with short answers so you remember both facts and explanations from Heron’s Formula
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. Check triangle inequality first
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
C. Check triangle inequality first
Explanation
Check triangle inequality first. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Heron’s Formula.
A. This idea is not part of the NCERT chapter
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. s = (a+b+c)/2 is semi-perimeter
D. Write three points from Heron’s Formula in your own words; that is enough for a short-answer start
Answer
B. 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: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Heron’s Formula.
A. Area = √[s(s−a)(s−b)(s−c)]
B. The textbook says the opposite of this statement
C. Check triangle inequality first
D. Mix MCQs with short answers so you remember both facts and explanations from Heron’s Formula
Answer
D. Mix MCQs with short answers so you remember both facts and explanations from Heron’s Formula
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Heron’s Formula. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Heron’s Formula in the chapter Heron’s Formula.
A. Useful when height is not given
B. Units are square units
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
B. Units are square units
Explanation
Units are square units. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q413 Mark3 marksModerateRevision pick
Explain Heron’s Formula in about three points, with one example.
Answer
Area = √[s(s−a)(s−b)(s−c)]. 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: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q453 Mark3 marksModerateRevision pick
Explain Heron’s Formula in about three points, with one example.
Answer
Heron’s Formula 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: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q575 Mark5 marksDifficultRevision pick
Write a long answer on Heron’s Formula. Include definition, explanation and one application.
Answer
Heron’s Formula — Check triangle inequality first. 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: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q69Case Based4 marksModerateRevision pick
A student is revising Heron’s Formula and notes: “Units are square units.” 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) Heron’s Formula.
(ii) Units are square units.
(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: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q73Case Based4 marksModerateRevision pick
A student is revising Heron’s Formula 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: Heron’s Formula · 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: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q81Competency Based3 marksDifficultRevision pick
Competency practice: A classmate can recall the heading Heron’s Formula but cannot explain it. How will you teach it in two steps using the textbook idea?
Answer
Step 1: State the fact — Useful when height is not given. 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: Heron’s Formula · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q93HOTS3 marksDifficultRevision pick
HOTS: If someone ignored the idea “Area = √[s(s−a)(s−b)(s−c)]”, what mistake could they make while solving a question from Heron’s Formula?
Answer
They would use the wrong term or the reverse relation. Remember: Area = √[s(s−a)(s−b)(s−c)]. Always check the NCERT definition before jumping to a formula or a long explanation.
Explanation
HOTS items ask you to predict an error. That is still chapter revision — not a claim that this exact wording will appear in the board exam.
Meta
Class: Class 9 · Subject: Mathematics · Chapter: Heron’s Formula · 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 “Most Important 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.
