Question

A rectangular prism has a length of 9 in., a width of 4 in., and a height of 1 1/2 in.

The prism is filled with cubes that have edge lengths of 1/2 in.



How many cubes are needed to fill the rectangular prism?
Enter your answer in the box.

Answer 1

First you multiply 9*4=36 then multiply 36*3/2=108/2

Then multiply 1/2 * 1/2 *1/2 =1/8

Lastly divide 108/2 and 1/8
which is 108/2*8/1 =864/2=432
So the answer is 432. Hope this helps