You measure it.
the prism group
width*height*length=perimeter of a rectangular prism! :)
yes you can
Volume of a Rectangular Prism The volume of a rectangular prism can be found by the formula: volume=length*width*height
The base of a rectangular prism is a rectangle. The area of a rectangle is length times width.
Volume of a rectangular prism is length x height x width.
To find the volume on a rectangular prism, the equaton is: length*width*height
Height
You multiply the length and width to get the volume
Assuming that this is a rectangular prism, you just multiply length times width.
-- Measure the length, width, and height of the prism. -- Multiply the three numbers. The result is the volume of the prism.
The answer depends on what information you do have about the prism.