hayhh9047 hayhh9047
  • 06-08-2019
  • Mathematics
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What's the circumference of a circle with a radius of 7 in? Round your answer to the nearest inch. A. 41 in. B. 44 in. C. 21 in. D. 14 in.

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jdoe0001 jdoe0001
  • 06-08-2019

[tex]\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\ \cline{1-1} r= 7 \end{cases}\implies C=2\pi (7)\implies C=14\pi \implies \stackrel{\textit{rounded up}}{C=44}[/tex]

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