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1 September, 08:44

A=64πm^2, find circumference, answer in terms of pi

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  1. 1 September, 09:48
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    16π

    Step-by-step explanation:

    Circumference = 2πr. Since the radius, r, is unknown, we can get it from the area.

    Area = πr² = 64π;

    Divide both sides by π. We are left with

    r² = 64; To find r, take square root of both sides

    Therefore, r = √64 = 8m;

    Circumference = 2*π*8 = 16πm
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