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Arturiano [62]
3 years ago
9

Radius of a circle with an area of 907.9 centimeters

Mathematics
1 answer:
Roman55 [17]3 years ago
3 0
\bf \textit{area of a circle}\\\\
A=\pi r^2~~
\begin{cases}
r=radius\\
-----\\
A=907.9
\end{cases}\implies 907.9=\pi r^2
\\\\\\
\cfrac{907.9}{\pi }=r^2\implies \sqrt{\cfrac{907.9}{\pi }}=r
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