Mathematics, 14.12.2021 03:40 sarahidan
If a cylinder has a volume of 648pi cm3( 3rd power) and a height of 8 cm, what is the radius?
Answers: 3
![\textit{volume of a cylinder}\\\\ V=\pi r^2 h~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ V=\stackrel{cm^3}{648\pi }\\ h=8 \end{cases}\implies 648\pi =\pi r^2(8) \\\\\\ \cfrac{648\pi }{8\pi }=r^2\implies 81=r^2\implies \sqrt{81}=r\implies \boxed{9=r}](/tpl/images/2594/8185/d1532.png)
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If a cylinder has a volume of 648pi cm3( 3rd power) and a height of 8 cm, what is the radius?...
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