What is the volume in cubic inches of a rectangular tank that measures 60 inches by 30 inches by 12 inches?

What is the volume in cubic inches of a rectangular tank that measures 60 inches by 30 inches by 12 inches?

• A. 2160 cubic inches
• B. 216000 cubic inches
• C. 21600 cubic inches
• D. 216 cubic inches

Answer: (C)

Volume of a rectangular tank is found by multiplying its length, width, and height. So multiply 60 inches by 30 inches to get 1800 square inches, then multiply by the height of 12 inches to obtain 21600 cubic inches. The units become cubic inches because you multiplied three linear dimensions. The other numbers come from incorrect placement or interpretation of the decimal/zeros: 2160 would use 1.2 instead of 12 for the height, 216000 would use 120 for the height, and 216 would imply a height of 0.12 inches. The correct product is 21600 cubic inches.

Volume of a rectangular tank is found by multiplying its length, width, and height. So multiply 60 inches by 30 inches to get 1800 square inches, then multiply by the height of 12 inches to obtain 21600 cubic inches. The units become cubic inches because you multiplied three linear dimensions. The other numbers come from incorrect placement or interpretation of the decimal/zeros: 2160 would use 1.2 instead of 12 for the height, 216000 would use 120 for the height, and 216 would imply a height of 0.12 inches. The correct product is 21600 cubic inches.