5 faces
5 .
5
There are 5 Faces on a triangular prism. There are 9 Edges on a Traingular prism.
There are 2 triangle base faces, and 3 rectangle faces. 5 total faces.
5
2
4
2
A pentagonal prism has 7 faces in total: 2 pentagonal bases and 5 rectangular lateral faces. Among these faces, there are no triangular faces. Thus, a pentagonal prism does not have any triangle faces.
2 of them.
5
7