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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

Mid-Chapter Quiz

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Exercise 15 Page 840

Use the formulas for the surface area and volume of a cylinder.

254.5 ft^3

The given solid is a cylinder.

The volume of a cylinder with the radius r and height h can be calculated by the following formula. V=π r^2 h Since we are given both the radius r and height h of the cylinder, we can substitute them into the formula and calculate V.

V=π r^2 h

r= 3, h= 9

V=π ( 3)^2 ( 9)

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Simplify right-hand side

Calculate power

V=π( 9)( 9)

Multiply

V=81π

Use a calculator

V=254.469004...

Round to 1 decimal place(s)

V≈ 254.5

The approximate volume of the given cylinder is 254.5 ft^3.