The circumference of the circle is approximately 125.66 cm the shaded region is 4/5 of the circle what's the area of the shaded region

To find the area of the shaded region, you will use the information about the circumference to solve for the diameter. You will then use the information about the diameter to find the area.

C = pi x d
125.66 = 3.14d
d = 40 cm

A = pi x r^2
3.14 x 20^2
A = 1256 square cm

4/5 x 1256 = 1004.8

The area is 1004.8 square cm.

Susie will have  decimal 10.29exact form 72/7mixed number form 10 2/7