How Many Vertices Does A Triangular Prism Have. As mentioned above, a triangular prism has 5 faces including 3 lateral rectangular faces and 2 triangular bases, 9 edges, and 6 vertices. The vertices of the triangular prism are the vertices of the two triangular bases connected by lines that form rectangles. Its edges include 6 edges of two triangular bases (3 + 3) and 3 sides that join the. What are the parts of a triangular prism?

3 triangle/number of vertices. How many lateral edges does a triangular prism have? A triangular prism has 3 lateral faces. Lateral faces are actually only the sides… (without the bases) so, a triangular prism has 3 lateral faces, 2 bases, and 5 total faces. For comparison, a rectangular prism has six faces and 12 edges. Mathematicians have derived euler’s formula for these and similar shapes. It states that for a polyhedron the number of faces plus the number of vertices minus the number of edges is always two. For a triangular prism, this formula holds true: Hence, the triangular prism has 5 faces and 9 edges.