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Free_Kalibri [48]
3 years ago
10

The area of a circle is 25 in. What is it’s radius?

Mathematics
1 answer:
Lesechka [4]3 years ago
5 0
\bf \textit{area of a circle}\\\\
A=\pi r^2~ 
\begin{cases}
r=radius\\
-----\\
A=25
\end{cases}\implies 25=\pi r^2\implies \cfrac{25}{\pi }=r^2
\implies 
\sqrt{\cfrac{25}{\pi }}=r
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