Question

In the following figure, the shaded area is 

विकल्प

•  50 (π−2) cm²

•  25 (π−2) cm²

•  25 (π+2) cm²

•  5 (π−2) cm²

Answer 1

In the figure,∠AOB = 90°

and radius of the circle = 10 cm

∴ Area of shaded portion = Area of quadrant AOB - area of ΔAOB

= `1/4pi"r"^2-1/2"r"^2`

= `1/4"r"^2(pi-2)`cm²

= `1/4xx10xx10(pi-2)`cm²

= 25 (π - 2) cm²