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15 December, 17:11

The area of a circle is 16 pi square feet. what is the radius

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Answers (2)
  1. 15 December, 17:26
    0
    The formula for the area of a circle is pi*radius^2

    16pi=pi*radius^2

    Divide by pi

    16=radius^2

    Take the square root of both sides

    Radius=4
  2. 15 December, 17:33
    0
    The radius is 4 ft

    Step-by-step explanation:

    The area of a circle is given by

    A = pi r^2

    16 pi = pi r^2

    Divide each side by pi

    16pi / pi = pi r^2/pi

    16 = r^2

    Take the square root of each side

    sqrt (16) = sqrt (r^2)

    4 = r
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