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The formula is: C = 2πr or 2pi*r

so, 2*3.14*8 = 50.24 inches.

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Actually, pi is bigger than 3.14 and, if you intend to give your answer to 2 decimal places, you must use pi to greater precision. A more accurate answer - to 2 decimal places - is 50.27 inches.

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14y ago

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