What is the formula for finding the volume of a rectangular prism?

Answer 1

The volume of any prism is its cross-sectional area times its length. For a rectangular prism (a cuboid), the cross-sectional area is that of a rectangle, ie width times height. So the Volume of is Rectangular Prism is: Length x Width x Height= x^3

Example:

Length= 15 (inches)

Width= 35 (inches)

Height= 40 (inches)

(15) x (35) x (40) = 21,000^3

To make your answer into:

Gallons: (x^3) ÷ 231= (gallons)

example: (21,000) ÷ 231= 90.90 gallons.

Liters: (x^3) ÷ 61= (liters)

example: (21,000) ÷ 61= 344.26 gallons.

Cup: (x^3) ÷ 14.4= (cups)

example: (21,000) ÷ 14.4= 1458.3 Cups

Answer 2

If the length, breadth and height of a rectangular prism are represented by L, B and H, then

Volume = L*B*H cubic units.

Answer 3

Volume = (length) x (width) x (height)