Question

How many of the small cubes with the edge length of 1/4 centimeter does it take to make a prism with the width of 1 3/4 cm, length of 1 1/4 cm and height of 3/4 cm?

Answer 1

9514 1404 393

Answer:

105

Explanation:

The prism width is (1 3/4)/(1/4) = (7/4)/(1/4) = 7 cubes.

The prism length is (1 1/4)/(1/4) = (5/4)/(1/4) = 5 cubes.

The prism height is (3/4)/(1/4) = 3 cubes.

Then the total number of small cubes required to fill the prism is ...

V = LWH = (5)(7)(3) = 105

It takes 105 small cubes to make the larger prism.