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I need help awnsering these questions please get to me soon as you can

I need help awnsering these questions please get to me soon as you can-example-1

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Answer:

Answer is given below with explanations.

Explanation:


1)volume \: of \: cylinder = \pi \: {r}^(2) h \\ here \: radius \: (r) = 3 \: m \\ and \: height \: (h) = 8 \: m \: \\ volume \: of \: cylinder = \pi \: * {3}^(2) * 8 \\ \: \: = \pi \ * 9 * 8 \\ \: \: = 72\pi \\ \: \: = 226.195 \: {m}^(3) \\ 2)volume \: of \: pyramid \: = (1)/(3) * base \: area * height \\ base\: area = 25 * 16 \\ \: \: = 400 \: {ft}^(2) \\ volume \: of \: pyramid \: = (1)/(3) *400 * 45 \\ \: \: = 6000 \: cubic \: feet \\ 5) \: volume \: of \: cone = (1)/(3 \: ) \pi \: {r}^(2) h \\ here \: radius \: (r) = 6.2 \: m \: \\ height \: (h) = 6.8 \: m \\ volume \: of \: cone = (1)/(3 \: ) \pi \: * {6.2}^(2) * 6.8 \\ \: \: = 273.73 \\ 6) \: volume \: of \: hemisphere \: = (2)/(3) \pi \: {r}^(3) \\ here \: radius \:( r) = 6 \: in \\ volume \: of \: hemisphere \: = (2)/(3) \pi \: {6}^(3) \\ \: \: = 452.39 \: cubic \: inches

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