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10 December, 21:57

Work out the perimeter of this quater circle with a radius of 7cm, pi = 3.142

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  1. 11 December, 00:43
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    Perimeter of quarter circle formula =

    1/4 x pi x radius + 2r

    so 1/4 x 3.142 x 7

    = 5.4985

    5.4985 + 7 + 7

    = 19.4985

    ≈ 19.50 (2 decimal place)
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