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

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Grade: Education Subject: mathematics
Find the radius and the diameter to the nearest hundredth when C = 9π yd. Use 3.14 for π.
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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