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26 March, 04:01

If the area of the circle is 97.9 units squared, what is the radius?

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  1. 26 March, 06:56
    0
    r = 5.58

    Step-by-step explanation:

    The area of a circle is given by

    A = pi r^2

    97.9 = 3.14 r^2

    Divide each side by 3.14

    97.9/3.14 = 3.14 / 31.4 r^2

    31.17834395 = r^2

    Take the square root of each side

    sqrt (31.17834395) = sqrt (r^2)

    5.583757153 = r
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