H is the height of the triangular prism. You can find the area of the base by using the formula for finding the area of a triangle -- multiplying 12 by the length and width of the base. Volume of a rectangular prism formula.
To compute the volume of a rectangular prism requires three essential parameters which are the length width and height of the rectangular prism.
To calculate the volume all you have to do is find the area of one of the triangular bases and multiply it by the height of the prism. A is the length of one of the sides of the triangle that makes up the prism. Volume of a prism Weve learned that the volume of a cuboid is its length multiplied by its width multiplied by its height l times w times h. Using the formula helps prevent confusion or keeping track of which faces you have measured.