A pet store sells a rectangular prism aquarium as shown below.

If the volume is 21 cubic feet, what is the height of the aquarium?

4 feet

1.5 feet

h feet

bwhV

h5.1421 h621 6 h5.3

6

Substitute the volume, base, and width into

the volume formula…

Simplify

Divide each side of the

equation by 6…

When Betsy Ross sewed the first American flag, the flag had an area of 27 square feet. If the base of the flag was 9 feet, what was the height of the flag?

Substitute the area and base of the flag into the

area of a rectangle formula…

bhA

h927 Divide each side of the equation

by 9… 9 9 h3

U-Store It rents storage units in the shape of a rectangular prism that measure 4 feet long, 5 feet in depth, and 8 feet tall. What is the volume of the storage unit?

Substitute the base, width, and height of the storage unit into the volume of a

rectangular prism formula…

bwhV

854V Simplify

3ft 160V

Matthew’s parents purchased a new freezer to store ice cream for milk shakes as shown below. If the freezer has a volume of 24 cubic feet, what is the depth of the freezer?

Substitute the volume, base, and

height into the volume of a

rectangular prism formula…bwhV 3424 w Simplify

w1224 Divide each side of the equation

by 12…1212w2

The area of a trapezoid is 22 square cm. The length of base1 is 5 cm and the length of base2 is 6 cm. What is the height of the trapezoid?

6 cm

5 cm

h

Substitute the area, base1, and base2, into the area of a trapezoid

formula…

hbbA 2121

h6521

22

h1121

22 2 2

h1144 11 11

h4

Simplify

Multiply each side

of the equation

by 2…

Divide each side

of the equation by 11…