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The volume of a​ cone-shaped hole is 147 pi ft3 If the hole is 9 ft deep, what is the radius of the​ hole?

Please help!!

User Thida
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1 Answer

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radius : 3.95 ft


\sf volume \ of \ cone: (1)/(3) \pi r^2h


\hookrightarrow \sf (1)/(3) \pi r^2(9) = 147


\hookrightarrow \sf r^2 = (147*3)/(\pi (9))


\hookrightarrow \sf r = \sqrt{(147*3)/(\pi (9))}


\hookrightarrow \sf r = 3.95 \ ft

User Bjarni Ragnarsson
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