jas1068 jas1068

13-07-2019
Mathematics

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the area of a circle is 113.04in^2. what is the radius of the circle

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jdoe0001 jdoe0001

13-07-2019

[tex]\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} A=113.04 \end{cases}\implies 113.04=\pi r^2\implies \cfrac{113.04}{\pi }=r^2 \\\\\\ \stackrel{using~\pi =3.14}{36}=r^2\implies \sqrt{36}=r\implies 6=r[/tex]

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