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BookmarkA tetrahedron (plural: tetrahedra) is a polyhedron composed of four triangular faces, three of which meet at each vertex.
A regular tetrahedron is one in which the four triangles are regular, or "equilateral," and is one of the Platonic solids.
The tetrahedron is unique among the uniform polyhedra in possessing no parallel faces..
For more information about the topic Tetrahedron, read the full article at Wikipedia.org, or see the following related articles:
Antiprism — An n-sided antiprism is a polyhedron composed of two parallel copies of some particular n-sided polygon, connected by an alternating band of ... > read more
Cube — A cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. The cube can also be ... > read more
Polyhedron — A polyhedron is a geometric shape which in mathematics is defined by three related meanings. In the traditional meaning it is a 3-dimensional ... > read more
Tessellation — A tessellation or tiling of the plane is a collection of plane figures that fill the plane with no overlaps and no gaps. One may also speak of ... > read moreNote: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Tetrahedron at Wikipedia.org. See the Wikipedia copyright page for more details.
