Which of the following best describes a plane?
A. The edge of a desk
B. The point of intersection of two walls
C. A curve in a road
D. The surface of a flat table
The only item on that list that's a plane is the surface of a flat table. The edge of a desk is a rectangle, square, circle, etc. The intersection of two walls is a part of a straight line. A curve in a road is a part of a circle.
