Question

Lucy’s parents built a swimming pool in the backyard. Use 3.14 for π.

Answer 1

Answer:

Distance around the pool = 162.8 feet

Area of the pool = 957 square feet

Step-by-step explanation:

Distance around the swimming pool = Perimeter of the pool

Perimeter of the pool which is a composite figure will be,

= Circumference of the semicircle + Sum of three sides of the pool

= πr + 2×(length of the pool) + width of the pool

= 3.14×(10) + 2×40 + 20

= 62.8 + 80 + 20

= 162.8 ft

Area of the pool = Area of the semicircle + Area of the rectangular pool

                           = $\frac{1}{2}(\pi)(r)^{2}+(\text{length}\times \text{Width})$

                           = $\frac{1}{2}(3.14)(10)^2+(40\times 20)$

                           = 157 + 800

                           = 957 square feet