Answer :
So you don't have to use pi for this problem you can do L*W
So you can do 20*36
So you can do 20*36
Shaded region = area of rectangle - area of semicircle
= l x b - πr²/2
= 20 x 36 - 3.14 x 18/2 x 18/2 x 1/2
= 720 - 127.17
= 592.83 ft²
Hope this helps !!
= l x b - πr²/2
= 20 x 36 - 3.14 x 18/2 x 18/2 x 1/2
= 720 - 127.17
= 592.83 ft²
Hope this helps !!