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 HGF is the front face of the figure. Point B is not on the front face. Plane HFB is a diagonal plane through the figure from side to side. Point G is not on this plane. Plane HGB is is diagonal plane that goes through the figure from front to back. Point F is not on this plane. Plane GFB is the right face of the plane. Point H is not on this face.