A circular swimming pool with a diameter of 26 feet has a deck of uniform width built around it. If the area of the deck is 60(pi) square feet, find its width.
area of the pool is (pi)*r^2
let d be the width of the deck, then the radius is 13+d
area of the deck is given by,
deck area = (total circular area) – (pool area)
d=-28.133 or 2.133
hence d=2 feet to the nearest whole number
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