A 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 one kind of pyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point. In the case of a tetrahedron the base is a triangle (any of the four faces can be considered the base), so a tetrahedron is also known as triangular pyramid or Digonal Deltahedron.
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| - A 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 one kind of pyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point. In the case of a tetrahedron the base is a triangle (any of the four faces can be considered the base), so a tetrahedron is also known as triangular pyramid or Digonal Deltahedron.
- A tetrahedron is a 3-dimensional simplex. Its Bowers acronym is "tet". Under the elemental naming scheme it is called a pyrohedron.
- The Tetrahedron was an ancient, pre-Republic description of an area later known as the Arrowhead. It contained many of the founding worlds of the Galactic Republic, including Corellia, Coruscant, and Duro. It was named such because a Duros hyperspatial physicist believed that the planets of Alderaan, Coruscant, and Corellia, along with the Ginn Jump, were the four vertices of a perfect geometric pyramid.
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| - A 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 one kind of pyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point. In the case of a tetrahedron the base is a triangle (any of the four faces can be considered the base), so a tetrahedron is also known as triangular pyramid or Digonal Deltahedron.
- The Tetrahedron was an ancient, pre-Republic description of an area later known as the Arrowhead. It contained many of the founding worlds of the Galactic Republic, including Corellia, Coruscant, and Duro. It was named such because a Duros hyperspatial physicist believed that the planets of Alderaan, Coruscant, and Corellia, along with the Ginn Jump, were the four vertices of a perfect geometric pyramid. In 1 BBY, Doctor Insmot Bowen, pre-Republic specialist at the Obroan Institute for Archaeology, mentioned the Humans of the Tetrahedron during a conversation with Bevel Lemelisk, Admiral Conan Antonio Motti and General Arhul Kurumenga, indicating that the term was still in use when related to historical events.
- A tetrahedron is a 3-dimensional simplex. Its Bowers acronym is "tet". Under the elemental naming scheme it is called a pyrohedron.
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