2
5
It must have at least one.
A triangular prism has five faces.
A triangular prism has 9 edges!
there are two plane symmetry on triangular prism.
2
5
It must have at least one.
It has 2 lines of sym
12 lines of symmetry Hope this help u g-spots :P
The question is too ambiguous because, depending on its orientation, the top of a triangular prism can be a triangualar face, a rectangular face or an edge.
It could have just one - a plane (not plan!) parallel to its bases and halfway between them.
A triangular prism has 6 verticies
A triangular prism has five faces.
A triangular prism has 9 edges!
A triangular prism has 5 faces.