3 answers
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Face: 1
Edge: 2
Vertex: 3
Edge: 2
Vertex: 3
An edge is where two faces of the prism meet. In a triangular prism, there are 9 edges – 6 along the sides where the rectangular faces meet the triangular faces, and 3 on the base where the edges of the triangles meet.
A vertex is a corner where three edges meet. In a triangular prism, there are 6 vertices – 3 on the top triangle and 3 on the bottom triangle.