### 12.16.5 Polyhedra: polyhedron

The polyhedron command takes as argument a sequence of points.

polyhedron returns and draws the convex polygon whose
vertices are from the list of points such that the remaining points
are inside or on the surface of the polyhedron.

Input:

polyhedron([0,0,0],[-2,0,0],[2,0,0],[0,2,0],[0,0,2])

Output: