A tetrahedron is a 3-dimensional simplex. Its Bowers acronym is "tet".
Variants[]
The tetrahedron can be seen as a triangle pyramid where all the sides are equal. It is also a line antiprism.
Properties[]
Two tetrahedra can be inscribed in a cube such that no vetex is used twice.
Structure[]
As a triangular pyramid, the tetrahedron is composed of a point that grows into a triangle. It has 3triangles around each vertex.
See also[]
| Zeroth | First | Second | Third | Fourth | Fifth | Sixth | Seventh | Eighth | Ninth | Tenth | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Simplex | Point | Line | Triangle | Tetrahedron | Pentachoron | Hexateron | Heptapeton | Octaexon | Enneazetton | Decayotton | Hendecaxennon |
| Hypercube | Point | Line | Square | Cube | Tesseract | Penteract | Hexeract | Hepteract | Octeract | Enneract | Dekeract |
| Cross | Point | Line | Square | Octahedron | Hexadecachoron | Pentarss | Hexarss | Heptarss | Octarss | Ennearss | Decarss |
| Hypersphere | Point | Line | Circle | Sphere | Glome | Hyperglome | Hexaphere | Heptaphere | Octaphere | Enneaphere | Decaphere |