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22 September, 13:10

What's the area of a circle with the diameter of 7m? (use 3.14 as pi)

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  1. 22 September, 13:33
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    Area = Pi * r^2

    '

    r = 7 / 2 = 3.5

    area = 3.14 * 3.5^2

    area = 3.14 * 12.25

    area = 38.465 m sq
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