07-05-2019
Mathematics

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The circumference of a circle is 60 pi cm. What is the radius of the circle?

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jdoe0001 jdoe0001

07-05-2019

[tex]\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=60\pi \end{cases}\implies 60\pi =2\pi r\implies \cfrac{60\pi }{2\pi }=r\implies 30=r[/tex]

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