Question

find the area of the shaded portion. take pie = 22/7 ​

Answer 1

The area of the shaded region is 1/4th of area of circle.

thus area:

$\pi \frac{ {r}^{2} }{4} \\ = \frac{22}{7} \times 7 \times 7 \times \frac{1}{4} {cm}^{2} \\ = \frac{77}{2} {cm}^{2} \\ = 38.5 {cm}^{2}$