


Related Terms 


Plane: One of the basic undefined terms of geometry. A plane goes on forever in all directions (in twodimensions) and is "flat" (i.e., it has no thickness). 
Dimensions: The measure of the magnitude or size of an object.
Intersecting Planes: Planes that cross each other. The region where two planes cross forms one line.
Point: One of the basic undefined terms of geometry. A point has no length, width, or thickness, and we often use a dot to represent it.
Line: One of the basic undefined terms of geometry. A line has no thickness but its length goes on forever in two directions.
Halfplane: The portion of a plane on one side of a line extending on the plane.


