Mathematics
tom3
12

HELP ASAP George plans to cover his circular pool for the upcoming winter season. The pool has a diameter of 20 feet and extends 12 inches beyond the edge of the pool. A rope runs along the edge of the cover to secure it in place. a. What is the area of the pool cover? b. What is the length of the rope?

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(1) Answers
dyllan

The pool has a diameter 20 ft so:  r = 10 ft. The pool cover extents 12 inches beyond the edge of the pool.  12 inches = 1 foot Therefore, the radius of the pool cover is : r = 10 + 1 = 11 ft. a. The area of the pool cover: A = r² π = 11² π = 121 π ft² b.  The length of the rope: l = 2 r π = 2 · 11 π = 22 π ft.

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