## Number of edges on a triangular prism

**How many edges are there on a triangular prism?**

**9**

Everyone knows that in geometry a triangular prism is a three-sided prism. Needless to say, a triangular prism is a polyhedron made of a triangular base, a translated copy, and 3 faces joining corresponding sides. There are 9 edges on a triangular prism. It is also important to know that the three faces of a triangular prism are parallelograms. Moreover, all cross-sections parallel to the base faces are the same triangle.

This fact is verified on : October 14, 2013.