lenght x width
The formula for finding the volume for a triangular pyramid is half base x height x length. A triangular pyramid has four faces.
It is (1/3)*base area*vertical height
base add size of one face times 4
It is 1/3*(base area)*(vertical height).
Volume = 1/3*base area*perpendicular height
Volume = 1/3*base area*height
Find The Area Of Base and The Four 'Faces' and add them together.
go to this website... it has a diagram and equation http://www.mathsteacher.com.au/year10/ch14_measurement/25_pyramid/21pyramid.htm
A pyramid is any three-dimensional polyhedron where the faces other than the base are triangular and converge at one point, called the apex. The formula for finding the volume of a pyramid is . There are some tutorials at the related link below that can help you figure out how to use this formula.
base*width*height
The bottom, or base of a pyramid would count as a face is you were finding out surface area.
(1/3)Bh, that is, 1/3 times the base area times the perpendicular height.