A tetrahedron is the simplest polytope with strictly triangular
faces. The tetrahedron has six faces and has slightly raised two
opposite vertices of the base of a quadratic pyramid.
A tetrahedron is the simplest polytope with strictly triangular
faces. The tetrahedron has six faces and has slightly raised two
opposite vertices of the base of a quadratic pyramid.
View page
William Jockusch has written:
'Cutting a polytope'
View page
In geometry, an octahedron (plural: octahedra) is a polyhedron with eight faces. A regular octahedron is a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex.
It is a 3-dimensional cross polytope (shape).
---Wikipedia
View page
Helmut Emde has written:
'Homogene Polytope' -- subject(s): Polytopes
View page
A bitruncation is an operation on a regular polytope in which
every edge is lost and every face is reduced in size.