Question

What is the area of the shaded sector of the circle?

9 pi units^2
27 pi units^2
81 pi units ^2
162 pi units^2

Answer 1

27 pi

Explanation:

Answer 2

27π units²

Explanation:

The area (A) of the shaded sector is calculated as

A = area of circle × fraction of circle

=πr² ×
`(120)/(360)`

= π × 9² ×
`(1)/(3)`

= 81π ×
`(1)/(3)`

= 27π units²