In geometry, a pyramid is a polyhedron formed by connecting a polygonal base and a point (vertex). Pyramids are generally classified by their bases. The pyramids have square bases, are called square pyramids, a hexagonal pyramid has a base that is a hexagon and the pyramids have triangular bases called as triangular pyramids, and so on. Triangular pyramid have three triangles meet at a common point, called apex, which come off of a common triangular base..
A triangular pyramid is a three -dimension figure with three faces that are triangles and base that is again a triangle.