sierrakerns872 sierrakerns872

19-03-2019
Mathematics

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The area of a cd-rom label is 113.04 cm squared. What is its radius?

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jdoe0001 jdoe0001

19-03-2019

[tex]\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ A=113.04 \end{cases}\implies 113.04=\pi r^2\implies \cfrac{113.04}{\pi }=r^2 \\\\\\ \sqrt{\cfrac{113.04}{\pi }}=r\implies 5.998\approx r[/tex]

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