asap! the diagram below gives the dimensions of a swimming pool. these are not answers! (a) what is the total area of the swimming pool? explain your reasoning. (b) what is the perimeter of the swimming pool? explain your reasoning.

Area of rectangle = 36 x 20 = 720 ft^2

Perimeter of rectangle = 2(36 + 20) = 112 ft

Area of semi-circle = 1/2πr^2 (r = 18/2 = 9, using π = 3.14)
= 1/2 x 3.14 x 9^2
= 142.87 ft^2

Perimeter of semi-circle = πd = 3.14 x 18 = 56.52 ft

(a) What is the total area of the swimming pool? Explain your reasoning.

area of the swimming pool = area of rectangle - area of semi-circle
area of the swimming pool = 720 ft^2 - 142.87 ft^2 = 577.13 ft^2

area of the swimming pool = 577.13 ft^2


(b) What is the perimeter of the swimming pool? Explain your reasoning.
perimeter of the swimming pool = perimeter of rectangle - perimeter of semi-circle
perimeter of the swimming pool = 112 ft - 56.52 ft = 55.48 ft

answer
perimeter of the swimming pool = 55.48 ft