Question

Triangular pyramid has $4$ faces, __________ edges and __________vertices.

• A. $6$
• B. $4$

Answer 1

A triangular pyramid is a pyramid which has a triangular base. In geometry, vertices are essentially corners. All triangular-based pyramids, either regular or irregular, have four vertices.

Triangular-based pyramids have $6$ edges, $3$ are along the base and $3$ are extending up from the base. If the six edges are of the same length, all the triangles are equilateral, and the pyramid is called a regular tetrahedron.