What is the volume of a rectangular prism with length 4, width 3, and height 2?

• A. 12 cubic units
• B. 18 cubic units
• C. 30 cubic units
• D. 24 cubic units

Answer: (D)

Volume is the amount of space inside a rectangular prism, found by multiplying its three edge lengths: length × width × height. With 4, 3, and 2, you compute 4 × 3 = 12, then 12 × 2 = 24. So the volume is 24 cubic units. This reflects using all three dimensions to fill the object. The other numbers come from using only two dimensions or missing a factor, so they don’t represent the full space inside.