Mensuration — Important Questions
ICSE · Class 7 · Mathematics
50 important questions from Mensuration for ICSE Class 7 Mathematics, with answers. Includes multiple choice, multiple correct and true false questions.
Interactive on Super Tutor
Studying Mensuration? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
Free trial, no card needed.
Important Questions from Mensuration
An isosceles triangle has equal sides 10 cm each and base 12 cm. Find its area.
Show answer
48 cm²
For an isosceles triangle, area = 1/4 × b × √(4a² - b²). Here a = 10 cm and b = 12 cm. So area = 1/4 × 12 × √(4 × 10² - 12²) = 3 × √(400 - 144) = 3 × √256 = 3 × 16 = 48 cm².
The perimeter of a rectangle is 96 cm and its length is 28 cm. Find its breadth and area.
Show answer
Breadth 20 cm, area 560 cm²
Use b = P/2 - l. Here P = 96 cm, so P/2 = 48 cm. Breadth = 48 - 28 = 20 cm. Area = l × b = 28 × 20 = 560 cm².
A square has diagonal 14√2 cm. Find its area and side.
Show answer
Side 14 cm, area 196 cm²
For a square, diagonal = s√2. Given diagonal = 14√2 cm, so s = 14 cm. Area = s² = 14² = 196 cm².
The radii of two circles are 6 cm and 9 cm. Find the radius of a circle whose circumference equals the sum of their circumferences.
Show answer
15 cm
Sum of circumferences = 2π × 6 + 2π × 9 = 2π(6 + 9) = 2π × 15. So the required radius is 15 cm.
+46 more questions on Mensuration (ICSE Class 7 Mathematics)
Practise AllFrequently Asked Questions
What are the important topics in Mensuration for ICSE Class 7 Mathematics?
How many important questions are there in Mensuration?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Mensuration
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
The chapter's formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect
Study Plan
Step-by-step plan for this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
For serious students
Get the full Mensuration chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 7 Mathematics. Free to start, no card needed.