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26 March, 08:27

What's the circumference of a circle with radius of 18 in.

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  1. 26 March, 08:33
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    C = 36 pi or approximately 113.04

    Step-by-step explanation:

    The circumference of a circle is given by

    C = 2*pi*r

    C = 2*pi*18

    C = 36 pi

    We can approximate pi by 3.14

    C = 36*3.14

    C = 113.04
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