The volume of a rectangular block measuring 5 feet long, 3 feet wide, and 2 feet high is which of the following?

The volume of a rectangular block measuring 5 feet long, 3 feet wide, and 2 feet high is which of the following?

• A. 30 cubic feet
• B. 10 square feet
• C. 300 cubic feet
• D. 10 cubic feet

Answer: (A)

Volume is found by multiplying the three dimensions of a rectangular block: length, width, and height. For this block, 5 feet by 3 feet by 2 feet gives 5 × 3 × 2 = 30 cubic feet. The other numbers mix up units or omit a dimension: 10 square feet is an area, not volume; 300 cubic feet would require a larger third dimension; 10 cubic feet would result from using only two of the dimensions or a different set of measurements.

Volume is found by multiplying the three dimensions of a rectangular block: length, width, and height. For this block, 5 feet by 3 feet by 2 feet gives 5 × 3 × 2 = 30 cubic feet. The other numbers mix up units or omit a dimension: 10 square feet is an area, not volume; 300 cubic feet would require a larger third dimension; 10 cubic feet would result from using only two of the dimensions or a different set of measurements.