High School Geometry/Points, Lines, and Planes

Three of the most basic objects in geometry are the point, the line, and the plane. These are described in the table below.

Image	Object	Description
	Point	A specific place in space. They are infinitely small (they have no size) and are denoted by a single capital letter, in this case, A.
	Line	A straight path that extends infinitely in both directions. Lines are denoted by two points on the line under a line symbol, <->. Also, they are made up of an infinite number of points.
	Plane	A flat surface that extends infinitely in all directions. Planes have no thickness whatsoever and can be made using a minimum of three points. Shown here is a plane being intersected by two lines. Planes are named by four points on the plane (i.e. "plane ABCD").