bcerna2001 bcerna2001

19-04-2017
Mathematics

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Find the radius of a circle with a circumference of 45pi

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apologiabiology apologiabiology

19-04-2017

c=2pir
45pi=c

45pi=2pir
divide both sides by pi
45=2r
divide by 2
22.5=r

22.5 units

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