First a regular pyramid is a pyramid with a base that is a regular polygon. Find the Volume of Triangular Pyramids Easy. The volume of the pyramid is 13 the area of the base multiply by the height.
V ⅓ A H.
Once you have those values you can plug them into the formula for the volume of a triangular pyramid and simplify. The formula in general is the area of the base the red triangle in the picture on the left times the height h. The volume is calculated using the area at the base of the pyramid and the vertical height to the apex. Once you have those values you can plug them into the formula for the volume of a triangular pyramid and simplify.