We know that the area of a triangle is 12 times the base times the height. And then were going to multiply it by our depth of this triangular prism. Volume 05 b h length where b is the length of the base of the triangle h is the height of the triangle and length is prism length.
The right hand picture illustrates the same formula.
The Volume of triangular prism 1 2 b h l Volume of triangular prism 1 2 b h l. Where b b is the base length h h is the height of the triangle and l l is the length between the triangular bases. Multiply the triangular area by the height of the prism to find the volume. The volume formula for a triangular prism is height x base x length 2 as seen in the figure below.