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Mensuration — Class 8 CBSE Mathematics MCQs with Solutions
Free Class 8 CBSE Mathematics Mensuration MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
The area of a triangle with base 10 cm and height 8 cm is:
A. 18 cm²
B. 40 cm² ✓ Correct
C. 80 cm²
D. 160 cm²
Solution: ½ × 10 × 8 = 40 cm².
Q2 — easy
Find the volume of a cube of side 5 cm.
A. 25 cm³
B. 75 cm³
C. 125 cm³ ✓ Correct
D. 150 cm³
Solution: 5³ = 125 cm³.
Q3 — easy
The area of a square of side 12 cm is:
A. 48 cm²
B. 96 cm²
C. 144 cm² ✓ Correct
D. 288 cm²
Solution: 12² = 144 cm².
Q4 — hard
The curved surface area of a cylinder of radius 7 cm and height 10 cm is (π = 22/7):
A. 220 cm²
B. 308 cm²
C. 440 cm² ✓ Correct
D. 660 cm²
Solution: 2πrh = 2 × 22/7 × 7 × 10 = 440 cm².
Q5 — hard
The volume of a cube is 512 cm³. Find its total surface area.
A. 256 cm²
B. 384 cm² ✓ Correct
C. 448 cm²
D. 512 cm²
Solution: Side = 8 cm; TSA = 6 × 64 = 384 cm².
Q6 — hard
A rectangular sheet 22 cm × 10 cm is rolled along its length into a cylinder. Find the radius (π = 22/7).
A. 3.5 cm ✓ Correct
B. 5 cm
C. 7 cm
D. 10 cm
Solution: 2πr = 22 → r = 3.5 cm.
Q7 — medium
The total surface area of a cube of side 6 cm is:
A. 36 cm²
B. 144 cm²
C. 216 cm² ✓ Correct
D. 256 cm²
Solution: 6 × 6² = 216 cm².
Q8 — medium
Find the area of a circle of radius 14 cm (π = 22/7).
A. 88 cm²
B. 154 cm²
C. 308 cm²
D. 616 cm² ✓ Correct
Solution: 22/7 × 196 = 616 cm².
Q9 — medium
A cylinder has radius 7 cm and height 20 cm. Find its volume (π = 22/7).
A. 1540 cm³
B. 2200 cm³
C. 3080 cm³ ✓ Correct
D. 4400 cm³
Solution: 22/7 × 49 × 20 = 3080 cm³.