Question

A square ABCD is inscribed in a circle of radius 10 units. Find the area of the circle not included in the square.

Answer 1

$2\pi {r}^{2} = 2 \times \ \frac{22}{7} \times 10 \times 10 \\ \: \: \: \: = \frac{4400}{7} sq. \: unit$