1. Undefined Terms
Plane
Line
Point

2. Definition Representation Notation
A Line Segment consists of two points (endpoints) and all points in between.
Collinear Points are points that lie on the same line.
Nonlinear Points are points that do NOT lie on the same line.
A ray is a piece of a line with one endpoint (beginning) and extends infinitely in one direction.
Coplanar Points are points and lines that lie in the same plane.
Parallel Lines are two lines on the same plane that do not intersect (coplanar lines).
Perpendicular Lines are two intersecting lines that form a 90⁰ angle.
Intersecting Lines are two lines that meet at a given point.
Skew Lines are two non-coplanar lines that do not intersect.

3. Postulates

4. Name:____________________________Period:_____Date:__________________
Extra Practice- Points, Lines, Planes

7. Name:____________________________Period:_____Date:__________________
Home Learning – Basic Definitions is Geometry

11. Name:____________________________Period:_____Date:__________________
Quiz- Basic Definitions is Geometry 1. 3. a. b. 2. c.