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22 August, 11:04

A circular swimming pool is 22 feet across. how many square feet of material cover the bottom of the pool?

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  1. 22 August, 12:20
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    Area of a circle is pr^2, or when using d as r=d/2 is (pd^2) / 4. It says that the pool is 22 feet across so that means the diameter of the pool is 22 ft so

    A = (p*22^2) / 4

    A=484p/4

    A=121p ft^2

    A≈380.13 ft^2
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