Question

Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of pi

Answer 1

18π cm²

Explanation:

The area of the shaded region = Area of Sector

Radius, r =

The value of θ = 80°

Recall :

Area of Sector :

A = θ / 360 * πr²

A = (80 / 360) * π * 9²

A = 0.222222 * π * 81

A = 18π cm²