Glencoe Math: Course 2, Volume 2
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Glencoe Math: Course 2, Volume 2 View details
Chapter Review
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Exercise 5 Page 701

Use the formula for the volume of a pyramid.

784 in.^3

Practice makes perfect

We know that Mrs. Delgado stores cookies in a jar that is a pyramid with the height of 12 inches and a square base with side lengths of 14 inches. Let's draw a diagram for this situation.

Now, we want to find the volume of the jar. We can do this using a known formula. V=1/3Bh In this formula, B is the area of the base and h is the height. Let's find the area of the pyramid's base! Remember that the area of the square equals the squared length of the side. B=s^2 ⇒ B&= 14^2 &= 196 The area of the pyramid's base is 196 square inches. Because we also know the height of our pyramid, we can substitute these values into the formula and calculate V. Let's do this!
V=1/3Bh
V=1/3( 196)( 12)
Simplify right-hand side
V=1/3(2352)
V=2352/3
V=784
The volume of the pyramid-shaped jar that Mrs. Delgado stores cookies in is 784 cubic inches.