A location with NO size or shape.

Made up of no points with NO thickness or width (goes on forever).

A measurable part of a line consisting of TWO endpoints (Has an end. does NOT go on forever).

A line that extends INDEFINITELY in ONE direction.

A flat surface made up of points and extends INDEFINITELY in ALL directions.

Points that lie on the SAME line.

Points that DON'T lie on the same line.

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Unit 2 Definitions

Segment Proof Def

Term	Definition
Point	A location with NO size or shape.
Line	Made up of no points with NO thickness or width (goes on forever).
Line Segment	A measurable part of a line consisting of TWO endpoints (Has an end. does NOT go on forever).
Ray	A line that extends INDEFINITELY in ONE direction.
Plane	A flat surface made up of points and extends INDEFINITELY in ALL directions.
Colinear	Points that lie on the SAME line.
Non-Colinear	Points that DON'T lie on the same line.