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Glencoe Math: Course 2, Volume 2

GM

Glencoe Math: Course 2, Volume 2 View details

Chapter Review

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Exercise 4 Page 701

Remember the formula for the volume of a prism.

1330 feet^3

Practice makes perfect

We will calculate the volume of the bed of a dump truck that is a prism. Let's draw a diagram for this situation!

The volume of a rectangular prism with length l, width w, and height h can be calculated using the following formula. V=l wh Here, we know that l= 20, w= 7, and h= 9 12. Let's substitute these values into the formula to calculate the value of V.

V=l wh

SubstituteValues

Substitute values

V= 20( 7)( 9 12)

▼

Simplify right-hand side

a bc=a* c+b/c

V=20(7)(9*2+1/2)

Multiply

V=20(7)(18+1/2)

Add terms

V=20(7)(19/2)

Multiply

V=140(19/2)

MoveLeftFacToNum

a*b/c= a* b/c

V=140 * 19/2

Multiply

V=2660/2

Simplify quotient

V=1330

The volume of the bed of the dump truck is 1330 feet^3.

Subchapter links

Key Concept Check p.700

Problem Solving p.701

Answering the Essential Question p.702