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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

4. Volumes of Prisms and Cylinders

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Exercise 24 Page 835

Use the formula for the volume of a cylinder.

About 48.86 cubic meters

Practice makes perfect

Let's analyze the given net.

We see that it is a net of a cylinder with a height of h=4.8 meters and a radius of 1.8 meters. Let's sketch it.

We are asked to find its volume. Let's use the formula for the volume of a cylinder.

V_\text{cylinder}=\pi r^2 h

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Substitute values and evaluate

r= 1.8, h= 4.8

V_\text{cylinder}=\pi ({\color{#0000FF}{1.8}})^2({\color{#009600}{4.8}})

Calculate power and product

V_\text{cylinder}= 15.552\pi

π ≈ 3.142

V_\text{cylinder}\approx 15.552({\color{#FF0000}{3.142}})

Multiply

V_\text{cylinder}\approx 48.864384

Round to 2 decimal place(s)

V_\text{cylinder}\approx 48.86

Finally, we find that the volume of the cylinder is about 48.86 cubic meters.

Subchapter links

Exercises p.834-838