What is the smallest number of vertices?

Question

What is the smallest number of faces a regular polyhedron can have? What is the greatest number? What is the smallest number of vertices?

Answer 1

In geometry, a polyhedron is a solid in three dimensions with flat faces and straight edges. Every edge has exactly two faces, and every vertex is surrounded by alternating faces and edges. The smallest polyhedron is the tetrahedron with 4 triangular faces, 6 edges, and 4 vertices. For the non-rotational isohedra 120 is the maximum number of faces..