What is the area of the shaded part?

enter image source here

I need help finding the shaded part of this image. The answer also has to be in 1 decimal point.

1 Answer
May 7, 2018

37.7cm^2(1dp)

Explanation:

the shaded area is the area of the large circle minus the smaller circle

larger circle=pixx4^2=16picm^2

smaller circle=pixx2^2=4picm^2

shaded part=16pi-4pi=12picm^2

=37.6991184

=37.7cm^2(1dp)