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bn:00076703n
Noun Concept
Categories: Prismatoid polyhedra, Deltahedra, Pyramids and bipyramids, Individual graphs, Platonic solids
EN
tetrahedron  0 20 polytope  12-point sphere  1 01 polytope  1 10 polytope
EN
Any polyhedron having four plane faces WordNet 3.0
Definitions
Relations
Sources
EN
Any polyhedron having four plane faces WordNet 3.0 & Open English WordNet
In geometry, a tetrahedron, also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. Wikipedia
Four-sided polyhedron Wikidata
A polyhedron with four faces. OmegaWiki
A polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids. Wiktionary
Polyhedron. Wiktionary (translation)
IS A
polyhedron
pyramid
simplex
convex polyhedron
HAS KIND
Reeve tetrahedra
Hill tetrahedron
trirectangular tetrahedron
orthocentric tetrahedron
Heronian tetrahedron
+5 relations
HAS INSTANCE
Goethestein
DEPICTED BY
Tetrahedral graph
DESCRIBED BY SOURCE
Granat Encyclopedic Dictionary
DIFFERENT FROM
regular tetrahedron
DUAL TO
tetrahedron
FOLLOWED BY
pentahedron
FOLLOWS
Trihedron
HAS FACET POLYTOPE
triangle
HAS PARTS OF THE CLASS
boundary
side
vertex
HAS QUALITY
sphericity
volume
inradius
HAS VERTEX FIGURE
triangle
STUDIED BY
category theory
WordNet 3.0 & Open English WordNet
EN
tetrahedron
Wikipedia
EN
tetrahedron
Wikidata
EN
tetrahedron
Wiktionary
EN
tetrahedron
OmegaWiki
EN
tetrahedron
Wikipedia Redirections
EN
0 20 polytope, 12-point sphere, 1 01 polytope, 1 10 polytope, 3-demicube, 3-demihypercube, 3-orthoscheme, 3-simplex, 4-hedron, alternated cube, birectangular tetrahedron, Birectified tetrahedron, demicube, digonal antiprism, Half turn tetrahedron, mirrored sphenoid, Monge point, Order-3 triangular tiling, phyllic disphenoid, quadrirectangular tetrahedron, Scalene tetrahedron, sphenoid (geometry), Spherical tetrahedron, Tet (geometry), Tetraeder, tetrahedra, tetrahedral, tetrahedral angle, Tetrahedral graph, Tetrahedran, tetrahedrons, twelve-point sphere
Wikidata Alias
EN
3-simplex, triangular pyramid

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