Answer:
56.1 cm²
Step-by-step explanation:
In any circle the area (A) of a sector is
A = area of circle × fraction of circle
= πr² × [tex]\frac{81}{360}[/tex]
= π × 8.91² × [tex]\frac{81}{360}[/tex]
= [tex]\frac{8.91^2(81)\pi }{360}[/tex] ≈ 56.1 cm²
