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Can someone PLEASE HELP me with this??? i really don't know what to do

A cylinder has a height of 10 ft and a volume of 25,456 ft³.

The radius of the cylinder is approximately ___ feet.

Round your answer to the nearest whole number.

User Ohlmar
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1 Answer

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\sf\purple{The\:radius\:of\:the\:cylinder\:is\:approximately \:28 \:ft.}

Given:-


\sf\blue{Height\:of\:the\:cylinder\:(h) } = 10 ft.


\sf\pink{Volume\:of\:the\:cylinder} = 25,456 ft³.

To find:-


\sf\purple{The\:radius\:of\:the\:cylinder.}

Step-by-step Step-by-step explanation:-

We know that,


\sf\red{Volume\:of\:a\:cylinder} =
\pi {r}^(2) h \\ ✒ \: 25456 \: {ft}^(3) = \pi {r}^(2) * 10 \: ft \\ \: ✒ \: {r}^(2) = \frac{25456 * 7 \: {ft}^(3) }{22 * 10 \: ft} \\ ✒ \: {r}^(2) \: = \frac{178192 \: {ft}^(2) }{220} \\ \: ✒ \: {r}^(2) = 809.9636 \: {ft}^(2) \\ \: ✒\: r \: = \sqrt{809.9636 \: {ft}^(2) } \\ ✒ \: r \: = 28.45 \: ft

Hence, the radius of the cylinder is 28.45 feet.


\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘