Question

Find the area of the shaded figure

(Type an exact answer in terms of pi)

PLEASE HELP

Answer 1

Explanation:

Area of bigger circle = pi*(75)^2

Area of smaller circle = pi*(40)^2

hence,the area of shaded region =

==> pi(75)^2 - pi(40)^2

==> pi ((75)^2-(40)^2)

==> 4025*pi mm^2

final shaded region = 4025*pi mm^2