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26 May, 08:11

The surface area of a sphere is 56pi square inches. What is the radius!

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  1. 26 May, 10:14
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    R=2.11

    Using the formula A=4πr^2

    r=1/2 (squareroot) 56/π=2.111004123

    =2.11 (2. dp)
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