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24-07-2018
Mathematics

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8. Using the formula C = 2πr, find the circumference of a circle with diameter of 28 inches. Round your answer to the nearest inch. A. 88 in. B. 28 in. C. 56 in. D. 44 in.

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24-07-2018

Since [tex]d=2r[/tex]

[tex]C = 2\pi r = \pi d \approx 28(3.14) = 87.92[/tex]

Choice A

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