Question

find the area of the shaded region

10 cm The figure shows two semicircles and a quarter of a circle. Find

Answer 1

Solution area of quarter Area of Shaded region - area of 2 semicircles + of a circle Area of semicircle Diamelis = 10cm radius= 5cm Area of semicircle: I Ty ? =% X3. 14x5x5 2 78.5 2 - 39. 25 cm² grea of 2 semicircles = 2x39.25 - 78.5 cm ²

Area of quarter of a circle = /[182 here r=5cm Area of quarter - of the circle X 3.14 x5x5 = 78.5 4. - 19.625cm Now Area of Shaded region - area of a Semi cirdest area of a quarter of Circle - area of shaded region = (78.5 +19.625) cm - 98:125 cm?