The area of the cross section shown is 261 yd? What is the length of the unknown side? The figure is not drawn to scale.
29 yd
Isyd
The length of the unknown side is yd.

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tatayanamarie5909

20.10.2020

Mathematics

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h~~
\begin{cases}
r=radius=\frac{diameter}{2}\\
h=height\\
----------\\
diameter = d\\
r=\frac{d}{2}
\end{cases}\implies V=\pi \left( \frac{d}{2} \right)^2 h
\\\\\\
V=\pi \left( \frac{d^2}{2^2} \right)h\implies V=\cfrac{\pi d^2 h}{4}\implies 4V=\pi d^2 h\implies \cfrac{4V}{\pi d^2}=h$

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The area of the cross section shown is 261 yd? What is the length of the unknown side? The figure is not drawn to scale. 29 yd Isyd The length of the unknown side is yd.