Page 127 - TB_5B

Activity 1 Volume of Rectangular Prisms

Find the volume of a rectangular box with 3 ft
the height of 3 ft, length of 5 ft, and width
of 4 ft. 4 ft
5 ft

Method 1 Fill the box with 1 ft unit cubes.

Fill the first row with Fill the first layer with Fill the box with cubes.
cubes. cubes.

Number of cubes in Number of cubes in Number of cubes in
a row: 5 1 layer: 5 4 20 1 box: 5 4 3 60

Method 2 Use a formula. Volume of rectangular prism
(area of base) height
Number of cubes in the box length width height
(number of cubes in 1 layer)
(number of layers) (ft3)
(5 4) 3
60 (unit cubes)
60 ft3

3 ft
4 ft
5 ft

116