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2 January, 16:01

What is the area of a semicircle whose perimeter is 72cm

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  1. 2 January, 18:51
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    A = 307.9 sq/cm

    Step-by-step explanation:

    Find the radius of the semi-circle

    diameter + half the circumference = 72 cm

    2r + pi*r = 72

    r (2+pi) = 72

    r = 72%2F%28%282%2Bpi%29%29

    r = 14

    :

    what will be the area of that semicircle?

    A = 1%2F2*pi%2A14%5E2

    A = 307.9 sq/cm
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