Triangular Pyramid
A one stop resource

When people think of a triangular pyramid, most will automatically think of it as a type of Platonic Solid - the Tetrahedon. So I feel I must clarify this first.

Every tetrahedron is a triangular pyramid, but every triangular pyramid is NOT a tetrahedron. It is only a Platonic Solid if all it's faces are congruent, regular polygons, in this case

if every triangle is equilateral and equal in size.


Base Shape



The three side faces are triangles and the base is also a triangle.


4 Vertices


6 Edges

Surface Area

Where: t = lateral height;

P = Perimeter of Base;

B = Area of Base


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