Question

What’s the least number of faces a polyhedron can have? And why?

Answer 1

The minimum number of faces a polyhedron can have is 4 faces.

Explanation:

We know that a polyhedron is a shape surrounded by polygons. We also know that we need at least 3 sides to make a polygon. So, at the minimum a polyhedron can be made by using only triangular faces but in order to make a closed figure we need at least four triangular faces (which is a tetrahedron).