Question

The area of the square is 25. The area of the circle is 39. What is the area of the shaded regions?

Answer 1

c.

Explanation:

First at all you need the half circle area formula:

(Pi*r2)/2 = 18Pi

After resolved this you have: r = 6, then diameter= 12

Then c) Its perimer is 40 because AB + CD + BC + AD = 40