- Triangular prism
If the sides are squares, it is called a
uniform polyhedron. In general the sides can be congruent rectangles.
Equivalently, it is a
pentahedronof 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 general right triangular prism can have rectangular sides.
The dual of a triangular prism is a 3-sided
symmetry groupof a right 3-sided prism with regular base is "D3h" of order 12. The rotation groupis "D3" of order 6.
The symmetry group does not contain inversion.
The volume of "any" prism is the product of the area of the base and the distance between the two base faces. In this case the base is a
triangleso we simply need to compute the area of the triangle and multiply this by the length of the prism:
Where b is the triangule base length, h is the triangle height, and l is the length.
Semiregular k 21 polytope
* [http://polyhedra.org/poly/show/22/triangular_prism Interactive Polyhedron: Triangular Prism]
* [http://www.korthalsaltes.com/triangular_prism.htm Paper model triangular prism] Prism nets
* [http://www.lifeisastoryproblem.org/explore/net_triangular_prism.pdf Printable net of a Triangular Prism] [http://www.lifeisastoryproblem.org Life is a Story Problem.org]
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Look at other dictionaries:
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