Polytetrahedron

A polytetrahedron generally refers to a geometric figure that is a higher-dimensional analogue of a tetrahedron. 1. **Tetrahedron in 3D**: A tetrahedron is a three-dimensional shape (a polyhedron) with four triangular faces, six edges, and four vertices. 2. **Generalization to Higher Dimensions**: In higher dimensions, a polytetrahedron can be thought of as the simplest form of a polytope in that dimension.