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20 July, 16:09

What is the surface area of a sphere with a circumference of 30 ft? Round the answer to the nearest tenth. 286.5 ft^2 143.2 ft^2 71.6 ft^2 22.8 ft^2

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  1. 20 July, 16:23
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    The answer is 71.6 ft^2.

    It is given that 2πR=30 therefore R=4.77 (aprox.)

    Now you take the area formula:πR^2 which is equal to 71.6
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