amelialynne65 amelialynne65

12-04-2018
Mathematics

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The area of a circular trampoline is 115.88 square feet. What is the radius of the trampoline? Round to the nearest hundredth.

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jdoe0001 jdoe0001

12-04-2018

[tex]\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ -----\\ A=115.88 \end{cases}\implies 115.88=\pi r^2 \\\\\\ \cfrac{115.88}{\pi }=r^2\implies \sqrt{\cfrac{115.88}{\pi }}=r[/tex]

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