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A semi circle has a diameter of 26, whats the perimeter?

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  1. 19 June, 01:12
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    Perimeter = 13*pi + 26 = 66.84 units

    Step-by-step explanation:

    Let us find the circumference.

    C = 2*pi*r

    C = pi*26

    half circle length = (1/2) * C = 1/2*pi*26 = 13*pi

    Perimeter must include the diameter length

    Perimeter = 13*pi + 26 = 66.84 units

    From the Great MysticChaCha
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