Geometry is the branch of mathematics that deals with the measurements, properties and relationships of different geometrical figures such as points, lines, triangles and circles among others.

A point is essentially a dot which represents a location in geometry. It does not have any length, breadth and depth. A line is composed of points which go infinitely in both directions. Line contains only one dimension of length. A plane extends infinitely in two dimensions. An angle is formed when two lines (or rays) diverge from a common point which is known as the vertex.

*NOTE: All Khan Academy content is available for free at **www.khanacademy.org*