So we know the area of the square is 8*8 = 64 ft.
To find the area of a semi circle, you take the area of a normal circle, then divide it into 2, then add the diameter.
Area of circle: pi*r^2
D = 8
r = 4
3.14 * 4^2
3.14 * 16
50.24.
50.24 / 2 = 25.12.
25.12 + 8 = 33.12.
So the area of the square: 64
Area of 1 Semicircle: 33.12
Area of second semicircle: 33.12
64 + 33.12 + 33.12 = 130.24.
Hope this is correct and it helped!