Exercise 8 Page 657

We want to find the volume of the Pyramid Arena in Memphis, Tennessee. This pyramid has a square base with a side length of 600 feet. It is 321 feet tall. We can calculate the volume of a pyramid using the following formula. V=1/3BhHere, B is the area of the base, and h is the height. The base of our pyramid is a square with a side length of 600 feet. Its area B is a square of the side length. Let's find it! B= 600^2 = 360 000 The base's area B is 360 000 square feet. The height h is 321 feet. Let's substitute these values into the formula and calculate V.

V=1/3Bh

SubstituteII

B= 360 000, h= 321

V=1/3( 360 000)( 321)

▼

Simplify right-hand side

MoveRightFacToNumOne

1/b* a = a/b

V=360 000/3(321)

CalcQuot

Calculate quotient

V = 120 000(321)

Multiply

Multiply

V=38 520 000

The volume of the Pyramid Arena is 38 520 000 cubic feet.