The cover has a circular shape,
with radius R = 20/2 feet + 12 inches = 10ft 12 in = 11 ft.
a.
To find the area of the pool cover we use the formula for the area of a circle:
[tex]A= \pi R^{2} = \pi 11^{2}=121 \pi [/tex] (in^2)
b.
To find the length of the rope, we use the formula for the Circumference of a circle with radius R:
C=2πR=2π*11=22π (in)
Answer:
a. A = 121π (in squared) ≈ 121*3.14 (in squared) ≈ 380 (in squared)
b. C = 22π (in) ≈ 22*3.14 (in) ≈ 69 (in)
