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30 March, 16:33

The circumference of a circular painting is 53.38 feet. What is the radius of the painting? Use 3.14 for pi and do not round your answer.

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  1. 30 March, 17:36
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    The circumference or perimeter of the circle has the formula 2*pi*r, where r is the radius of the circle. This could then be easily calculated:

    C = 2*pi*r

    53.38 = 2*3.14*r

    53.38 = 6.28r

    r = 53.38/6.28

    r = 8.5 ft

    Thus, the radius of the circle has a length of 8.5 feet.
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