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9 August, 13:17

A circle has area of 361pi cm2 what is the radius

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  1. 9 August, 13:46
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    Circle Area = PI * radius^2

    If you know the area then

    radius = square root (Area / PI)

    radius = square root (361 / PI)

    radius = square root (114.91)

    radius = 10.7 2
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