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25 October, 06:12

What is the perimeter of a semicircle with a diamiter of 4

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  1. 25 October, 08:04
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    2pi or approximately 6.28

    Step-by-step explanation:

    The perimeter of a circle is called the circumference

    A semicircle is 1/2 of the circle so we want 1/2 of the circumference

    1/2 C = 1/2 pi*d where d is the diameter

    = 1/2 pi * 4

    =2pi

    We can approximate pi by 3.14

    = 2 (3.14) = 6.28
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