Question

Please solve for area

Answer 1

A = 18π cm²

Explanation:

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

A = area of circle × fraction of circle

= πr² ×
`(80)/(360)` ( r is the radius , here r = 9 )

= π × 9² ×
`(8)/(36)`

= 81π ×
`(2)/(9)`

= 9π × 2

= 18π cm²