HSPT Math Practice Test 2026 – Complete Exam Prep

To find the volume of a rectangular prism, you use the formula:

Volume = length × width × height.

For this particular prism, the dimensions provided are as follows: length = 4 cm, width = 3 cm, and height = 2 cm.

Using the formula, you would calculate the volume as follows:

Volume = 4 cm × 3 cm × 2 cm.

First, multiply the length and width:

4 cm × 3 cm = 12 cm².

Next, take that result and multiply it by the height:

12 cm² × 2 cm = 24 cm³.

Thus, the volume of the rectangular prism is 24 cm³, matching the answer choice given as B. This calculation effectively demonstrates how the three dimensions interact to produce the total space the prism occupies.