Work Step by Step
Any 3 points can be used to describe a plane. In each case the 4th point is not on the same plan as the other 3. Plane AEB is the top face of the figure. Point C is not on the top face. Plane ABC is the back face of the figure. Point E is not on the back face. Plane AEC is a diagonal plane that goes through the figure side to side. Point B is not on this plane. Plane EBC is a diagonal plane that goes through the figure front to back. Point A is not on this plane.