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 2 Page 656

Use the formula for the volume of a pyramid.

about 3.8 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 2.2 centimeters by 1.8 centimeters rectangle. Its area B is a product of these sides, 2.2 ( 1.8) = 3.96 square centimeters. The height h is 2.9 centimeters. Let's substitute these values into the formula and calculate V.
V=1/3Bh
V=1/3( 3.96)( 2.9)
Simplify right-hand side
V=1/3(11.484)
V=11.484/3
V=3.828
V≈ 3.8
The volume of the pyramid is about 3.8 cubic centimeters.