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11 February, 04:25

What is the area of a circle with a diameter of nine

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  1. 11 February, 05:34
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    A = 63.585 units^2

    Step-by-step explanation:

    The area of a circle is given by

    A = pi r^2 where r is the radius

    We have a diameter of 9

    r = d/2 = 9/2 = 4.5

    A = (3.14) * (4.5) ^2

    A = 63.585 units^2
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