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15 May, 17:01

if the radius of circle r is 7 and the radius of circle s is 9, what is the ratio of the circumference of circle r to circle s

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  1. 15 May, 17:23
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    43.96 : 56.52

    Step-by-step explanation:

    Circumference = 2 * pi * Radius

    Circumference = Diameter * pi

    Circle R's Circumference = 43.96 (7 * 2 * 3.14)

    Circle S's Circumference = 56.52 (9 * 2 * 3.14)

    The ratio of the circumference of circle r to s = 43.96:56.52
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