Mensuration — Class 8 MCQs with Answers
Class 8 CBSE Mathematics · Chapter 109
Pre-2026 syllabusThis chapter is from the older NCERT book. See the 2026-27 Class 8 Mathematics chapters →
72 practice questions · 24 Easy · 24 Medium · 24 Hard · Updated
Jump to the 6 solved questions
Practise the most important Class 8 CBSE Mathematics questions from Chapter 109, "Mensuration". You get 9 timed quizzes made from 72 NCERT-based MCQs, with answers and explanations. The questions are split into 24 Easy, 24 Medium and 24 Hard. Warm up on the basics, then move on to the exam-level questions that top scorers in CBSE Board exams get right.
To score well in "Mensuration", focus on fast problem-solving, formula recall and step-by-step working. Each MCQ here is timed and uses exam-style marking (+4 correct, −1 wrong, 0 skipped). This helps you stay accurate when time is short, just as real papers need. Every question has a short explanation, so a wrong answer becomes a quick lesson. It is the fastest way to fix gaps before a test.
Use this chapter for focused revision. Start with the Easy set to check your basics on Mensuration, then move to Medium and Hard to practise applying them. Your accuracy, streaks and XP save automatically. This chapter also adds to your overall Class 8 Mathematics mastery score. Try the 6 sample questions below: tap an option to see the answer and a worked explanation. Sign in free to start practising.
Mensuration — important questions & MCQs with answers (Class 8 Mathematics)
6 solved questions from this chapter's difficulty levels, each with its answer and explanation. Tap an option to check yourself.
0 of 6 answered
- Q1 of 6Easy
Area of rectangle (l, b):
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Answer: l × b
Explanation: Length × breadth.
- Q2 of 6Easy
Volume of cube of side a:
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Answer: a³
Explanation: Cube volume.
- Q3 of 6Medium
Area of trapezium (parallel sides a, b; height h):
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Answer: ½(a+b)h
Explanation: Standard formula.
- Q4 of 6Medium
Volume of cylinder (r, h):
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Answer: πr²h
Explanation: Base area × height.
- Q5 of 6Hard
Area of circle (r=7, π=22/7):
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Answer: 154
Explanation: πr² = (22/7)·49 = 154.
- Q6 of 6Hard
Total surface area of cube of side a:
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Answer: 6a²
Explanation: 6 faces of area a².
Mensuration notes: key concepts (Class 8 Mathematics)
This chapter covers the area of plane figures (trapezium, quadrilateral, polygon) and the surface area and volume of solids (cuboid, cube, cylinder).
- Area of a trapezium
- Area = ½ × (sum of parallel sides) × height.
- Area of quadrilateral/polygon
- Found by splitting the figure into triangles using a diagonal and adding their areas.
- Surface area
- The total area of all faces of a solid; lateral surface area excludes the top and bottom.
- Volume
- The space occupied by a solid, measured in cubic units; 1 m³ = 1000 L.
- Solids covered
- Cuboid, cube and cylinder — each with its own surface-area and volume formula.
Start this chapter free
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This chapter has 72 questions (24 Easy · 24 Medium · 24 Hard), with timed scoring and instant feedback. The rest unlock with the ₹999/year plan.
Start with the questions above. The full quiz opens here after.
Mensuration — FAQs
What are the key concepts in Class 8 Mathematics Mensuration?+
This chapter covers the area of plane figures (trapezium, quadrilateral, polygon) and the surface area and volume of solids (cuboid, cube, cylinder). Key ideas include Area of a trapezium, Area of quadrilateral/polygon, Surface area, Volume, Solids covered.
What does Class 8 Mathematics Chapter 109 (Mensuration) cover on XamBaaz?+
It has 72 NCERT-based MCQs on "Mensuration": 24 Easy, 24 Medium and 24 Hard. Together they make 9 timed quizzes, and you never get the same set twice. Every question has an instant explanation. They help you prepare for CBSE Board exams.
Are these "Mensuration" questions free to practise?+
Yes. Sign in with Google to practise "Mensuration" free. Full unlimited access is ₹999/year. One year from the day you pay. You stay in Class 8 till 31 March; on 1 April your account moves up to Class 9 and the rest of your year carries over. No chapter is charged separately.
How should I revise "Mensuration" for the exam?+
Start with the Easy quiz to check your basics, then try Medium and Hard to practise applying them. There are 9 timed quizzes on this chapter, so you can come back for a fresh set instead of one you have seen. Read each explanation, retry the questions you miss, and track your accuracy until it stays high.
Are these "Mensuration" MCQs available with answers?+
Yes. 6 sample questions are on this page with answers: tap an option, or "Show answer", to see the correct option and a step-by-step explanation. Sign in free with Google to start practising, with instant scoring.
Is there negative marking in the "Mensuration" quizzes?+
Yes. The timed quizzes use exam-style marking: +4 for a right answer, −1 for a wrong one and 0 for a skip. MHT-CET and CBSE board papers have no negative marking. Our mocks for those are scored their way.
What are the important questions from Mensuration (Class 8 Mathematics)?+
The questions that matter most test Area of a trapezium, Area of quadrilateral/polygon, Surface area, Volume, Solids covered. This page shows 6 solved important MCQs with answers and explanations. Sign in to practise all 72 questions on the chapter as timed quizzes.
Is there an online quiz for Mensuration?+
Yes — Class 8 Mathematics Mensuration has timed online quizzes at Easy, Medium and Hard levels, with instant scoring and a worked explanation on every question. The first quiz on the chapter is free.
Are there question answers and extra questions for Mensuration (Class 8 Mathematics)?+
Yes. This page has 6 solved questions on Mensuration, each with the correct answer and a short explanation. Sign in to practise all 72 questions on the chapter as timed quizzes.