The Tetrahedron
A polyhedron bounded by four equilateral triangles; three meeting at each vertex.
The tetrahedron is one of the five platonic solids, and is the only regular polyhedron to be self-dual.
| Vertex Symbol |
Wythoff Symbol |
No. of Vertices |
No. of Edges |
No. of Faces |
Symmetry Group |
Dual Polyhedron |
| 33 | 3 | 2 3 | 4 | 6 | 4 | S4 | Tetrahedron |
|
Edge In-Radius |
= |
2 6
|
Edge Inter-Radius |
= |
22
|
Edge Circum-Radius |
= |
26 3 |