Question

A rectangular prism has a length of 6 cm, a width of 3 cm, and a height of 4 1/2 cm. The prism is filled with cubes that have edge lengths of 1/2 cm.   How many cubes are needed to fill the rectangular prism? Enter your answer in the box.

Answer 1

I got 648 on the test.

Explanation:

Answer 2

First, we need to find the volume of the prism, which is found by multiply the cross-sectional area by the length
(3 x 4.5) x 6 = 81 cm³
Now, we need to work out the volume of one of the little cubes, found by raising the side length to the power of 3
0.5³ = 0.125 cm³

Now, all we have to do is divide the larger volume by the smaller volume to find the number of cubes we need to fill the prism up.
81/0.125 = 648 cubes

Hope I helped!! xx