The volume of the rectangular prism = l × b × h
= 1 1/2 × 1 × 2 1/2
= 3/2 × 5/2
= 15/4 feet³
The volume of the small cube = (1/2)³
= 1³/2³
= 1/8 foot³
To find:
How many small cubes fit in the rectangular prism?
15/4 ÷ 1/8
15/4 × 8
15 × 2
30
Therefore, 30 small cubes can fit inside the rectangular prism.
The volume of the rectangular prism in terms of the small cube
= 1/8 × 30
= 1/4 × 15
= 15/4 feet³
