Question

Find the area of the shaded region.

Answer 1

`426.96 \: {km}^(2)`

Explanation:

Area of the shaded region = Area of triangle with base 40 km and height 27 km - Area of circle with radius (12/2) 6 km.

`= (1)/(2) * 40 * 27 - 3.14 * {(6)}^(2) \\ \\ = 20 * 27 - 3.14 * 36 \\ \\ = 540 - 113.04 \\ \\ = 426.96 \: {km}^(2)`