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4 June, 14:56

The area of a semicircle is A=1/2 (3.14) r^2 solve for r

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  1. 4 June, 14:59
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    First divide bot sides of the formula by 1/2 (3.14) : -

    2A / 3.14 = r^2

    r = sqrt (2A/3.14)
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