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11 July, 11:21

Perimeter of a semi circle with diameter 30cm

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  1. 11 July, 11:25
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    77.12 cm to the nearest hundredth.

    Step-by-step explanation:

    The length of the curved part = 1/2 * 2 pi r

    = 15 pi.

    Total perimeter = 30 + 15pi

    = 30 + 15*3.1416

    = 77.124.
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