Question

Please answer this question and prove explanation. Thanks

Answer 1

D

Explanation:

the area (A) of the sector is calculated as

A = area of circle × fraction of circle

= πr² ×
`(45)/(360)` ( r is the radius )

= π × 1² ×
`(1)/(8)`

= π × 1 ×
`(1)/(8)`

=
`(\pi )/(8)` cm²