Class 8 · Mathematics · Ganita Prakash - Part II

7. Area

Try question 1

The area of a trapezium with parallel sides a and b and height h is

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Answer and explanation

Answer: B. ½ × (a + b) × h

It is the average of the parallel sides times the height.

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Try question 2

The area of a parallelogram with base 9 cm and height 4 cm is

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Answer and explanation

Answer: C. 36 cm²

Base × height = 9 × 4 = 36 cm².

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Try question 3

The area of a circle of radius 7 cm is (π = 22/7)

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Answer and explanation

Answer: B. 154 cm²

πr² = (22/7) × 49 = 154 cm².

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