Practice!

Sample Problem

The volume of a cuboid is 729 ft3. Its height is 9 ft. It has a square base. Find the length of the square base.

The length of the square base is ft.

Solution

Area of the square base of  a cuboid= volume  ÷ height

= 729 ÷ 9

= 81 ft2

Length of the square base

=  = 9 ft