A triangular prism is a prism with a triangular base. This also makes it the cartesian product of a triangle and a line segment. It is also the truncated triangular hosohedron, and because of this has 3-fold prismatic symmetry (D3h). Its Bowers' acronym is trip.
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| - A triangular prism is a prism with a triangular base. This also makes it the cartesian product of a triangle and a line segment. It is also the truncated triangular hosohedron, and because of this has 3-fold prismatic symmetry (D3h). Its Bowers' acronym is trip.
- If the faces are squares, it is a uniform polyhedron. Equivalently, it is a pentahedron of which two faces are parallel, while the surface normals of the other three are in the same plane (which is not necessarily parallel to the base planes). These three faces are parallelograms. All cross-sections parallel to the base faces are the same triangle. A right triangular prism is semiregular if the base faces are equilateral triangles, and the other three faces are squares. A general right triangular prism can have rectangular sides. The dual of a triangular prism is a 3-sided bipyramid.
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| - If the faces are squares, it is a uniform polyhedron. Equivalently, it is a pentahedron of which two faces are parallel, while the surface normals of the other three are in the same plane (which is not necessarily parallel to the base planes). These three faces are parallelograms. All cross-sections parallel to the base faces are the same triangle. A right triangular prism is semiregular if the base faces are equilateral triangles, and the other three faces are squares. A general right triangular prism can have rectangular sides. The dual of a triangular prism is a 3-sided bipyramid. The symmetry group of a right 3-sided prism with regular base is D3h of order 12. The rotation group is D3 of order 6. The symmetry group does not contain inversion.
- A triangular prism is a prism with a triangular base. This also makes it the cartesian product of a triangle and a line segment. It is also the truncated triangular hosohedron, and because of this has 3-fold prismatic symmetry (D3h). Its Bowers' acronym is trip.
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