Answer: 40.56ft.
Step-by-step explanation:
First, lets find the perimeter of the half circle: c = 2pi(r)
pi = 3.14
r = 4
3.14 * 4 = 12.56
12.56 * 2 = 25.12
Then, because it is only have a circle, divide by 2.
25.12/2 = 12.56
10 + 10 + 8 + 12.56 = 40.56
