The circumference of a circle is 28pi inches. What is the length of the radius of this circle?

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asked Sep 20, 2020 50.4k views

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The circumference of a circle is 28pi inches. What is the length of the radius of this circle?

Mathematics
high-school

CESCO asked

by CESCO

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$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=28\pi \end{cases}\implies 28\pi =2\pi r\implies \cfrac{28\pi }{2\pi }=r\implies 14=r$

Sivaprasad Derangula answered Sep 25, 2020

by Sivaprasad Derangula

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