Question

I am in need of assitance, question shown in picture.

Answer 1

it's going to be 7.4

Explanation:

5 x 4 = 20

4 / 2 since you want to get radius

2 x 2 = 4 x pi for both half circles.

4 x pi = 12.5 --> 13

20 - 12.5663706 = 7.43 ---> 7.4