Will any four points in space determine a quadrilateral? What is an example?
Is there any group of four points that don't determine a quadrilateral?
What is the smallest number of faces a polyhedron can have? The greatest? Smallest number of vertices?
Is there any group of four points that don't determine a quadrilateral?
What is the smallest number of faces a polyhedron can have? The greatest? Smallest number of vertices?