A bipyramid, also known as a tegum, is a polytope constructed by joining together two pyramids of some given polytope by their bases. The elements of a tegum are two pyramids for each of the base's elements. The bipyramid itself does not contain the base of the pyramids joined together as an element.
List of regular bipyramids[]
2 dimensions[]
- Square (Line segment bipyramid)
3 dimensions[]
- Triangular bipyramid
- Octahedron (Square bipyramid)
- Pentagonal bipyramid
- Hexagonal bipyramid
- Heptagonal bipyramid
- Octagonal bipyramid
4 dimensions[]
- Tetrahedral bipyramid
- Cubic bipyramid
- Hexadecachoron (Octahedral bipyramid)
- Dodecahedral bipyramid
- Icosahedral bipyramid