Glencoe Math: Course 2, Volume 2
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Glencoe Math: Course 2, Volume 2 View details
5. Volume of Pyramids
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Exercise 4 Page 657

Use the formula for the volume of a pyramid.

about 410.7 cubic centimeters

Practice makes perfect

We want to find the volume of the following pyramid.

We can calculate the volume of a pyramid using the following formula. V=1/3Bh Here, B is the area of the base, and h is the height. The base of our pyramid is a 14 centimeters by 8 centimeters rectangle. Its area B is a product of these sides, 14 ( 8) = 112 square centimeters. The height h is 11 centimeters. Let's substitute these values into the formula and calculate V.
V=1/3Bh
V=1/3( 112)( 11)
Simplify right-hand side
V=1/3(1232)
V=1232/3
V=410.666666...
V≈ 410.7
The volume of the pyramid is about 410.7 cubic centimeters.