If a cylinder has a height of 21 cm and a volume of 11,144 cm^3.

1 answer:

nataly862011 [7]3 years ago

7 0

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\qquad 
\begin{cases}
h=height\\
r=radius\\
----------\\
h=21\\
V=11,144
\end{cases}\implies 11,144=\pi \cdot r^2\cdot 21$

solve for "r"

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