Question

Amita wants to make a mold for a candle. She wants the shape of the candle to be a rectangular prism with a volume of exactly 28 cubic centimeters. She wants the sides to be in whole centimeters. How many different molds can she make?

Answer 1

The volume of a rectangular prism is L * W * H.

We are looking for whole numbers that multiply to 28.

There are 10 possible molds.

L,  W,  H
-------------

28, 1, 1

1, 1, 28

14, 2, 1

1, 14, 2

1, 2, 14

7, 4, 1

4, 1, 7

7, 1, 4

7, 2, 2

2, 2, 7