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13 December, 14:26

What is the area of a circle with a diameter of 23 centimeters? Use 3.14 for pi. Enter your answer, as a decimal, in the box.

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  1. 13 December, 15:15
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    The equation for the area of a circle is A = PI x r^2

    R = radius, which is half the diameter = 23/2 = 11.5

    Area = 3.14 x 11.5^2

    Area = 3.14 x 132.25

    Area = 415.265 square cm.
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