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9 May, 18:47

This quarter circle has a radius of 7 centimeters. What is the area of this figure? Use 3.14 for pi. Enter your answer as a decimal in the box. Round your answer to the nearest hundredth.

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  1. 9 May, 21:39
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    A quarter circle, is as what it name suggests, 1/4 of a circle. To get its area, you must get first the area of the circle as a whole -

    A = pi * r^2

    = 3.14 * 7cm^2

    = 3.14 * 49cm^2

    = 153.86cm^2 area of the whole circle

    Then, divide the area of the whole circle by 4.

    153.86cm^2 / 4 = 38.465cm^2

    Therefore, the area of a quarter circle is 38.47cm^2
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