Points, Lines and Planes Objective: To learn to identify, classify and name points, space, line, collinear points, plane, coplanar, postulate and axiom Point: has no size and represented by a small dot and named with a capital letter. Ex: Space the set of all points Line a series of points that extend in two opposite direction. Can be named by any two points in the line or with a single script lower case letter. Ex: Collinear points that lie on the same lines Point D Points A, B & C are collinear

Plane is a flat surface that has no thickness. It contains many lines and extends without end. You can name a plane by either a single script capital letter or by at least three of its non collinear points. Ex: Coplanar Points and lines in the same plane are coplanar. Points V, X, S, Y and U are coplanar Point Z and Point U are non coplanar

Basic Postulate of Geometry Postulate or Axiom – an accepted statement of fact