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4 August, 20:02

A circle has a circumference of 50.2450.24 units. What is the radius of the circle?

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  1. 4 August, 20:09
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    The formula for circumference is 2 x PI x r

    Using the circumference we can find the radius:

    50.24 = 2 x PI x r

    Multiply 2 by PI:

    2 x 3.14 = 6.28

    50.24 = 6.28 x r

    Divide both sides by 6.28:

    R = 50.24 / 6.28

    R = 8

    The radius is 8 units.
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