Question

I'm very confused on how to do this

Answer 1

4π

Explanation:

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

A = area of circle × fraction of circle

the angle subtended at the centre of each sector = 180° - 160° = 20°

then area of 2 sectors

= 2 × π × 6² ×
`(20)/(360)`

= 2 π × 36 ×
`(20)/(360)`

= 2π ×
`(20)/(10)`

= 2π × 2

= 4π