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19 September, 23:22

Find the radius and the diameter to the nearest hundredth when C = 9π yd. Use 3.14 for π.

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  1. 19 September, 23:38
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    Circumference=2pir

    circumference=pid

    therfor

    c=9pi=2pir=pid

    9pi=2pir

    divide both isdes by pi

    9=2r

    divide both sides by 2

    4.5=r

    9pi=pid

    divide both sides by pi

    9=d

    diameter=9yd

    radius=4.5 yd
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