Question

Find the (total) area of the shaded regions (s), where O is the centre of the circle.

Answer 1

Solution :-

→ Shaded region area = Area of Trapezium - Area of circle .

we know that,

• Area of Trapezium = 1(/2)(sum of parallel sides) * height .
• Area of circle = π * (radius)²

→ Shaded region area = (1/2)[18 + 35] * 18 - 3.14 * 6 * 6

→ Shaded region area = 9 * 53 - 3.14 * 36

→ Shaded region area = 477 - 113.04

→ Shaded region area = 363.96 cm² (Ans.)

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