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None - each of the faces (including the bas) is a triangle - triangles do not have any parallel lines.
A rectangular prism has six faces, and each pair of opposite faces is parallel to each other. Therefore, a rectangular prism has three pairs of parallel faces.
There are 5 Faces on a triangular prism. There are 9 Edges on a Traingular prism.
It can have one, two or three pairs of parallel faces.
2 of them.