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Definitions

Consider the line:

2seg1

Point B is between points A and C, and A, B and C are collinear.

Segment AC consists of points A and C and all points in between A and C. Points A and C are called the endpoints of the segment AC. 

2seg2

Segment AC, denoted as 2seg3

Ray AC consist of points A and C and all points P such that C is between A and P. Point A is the endpoint of the ray. When denoting a ray, its endpoint is named first.

2seg4

Ray AC, denoted as 2seg5

Two rays with a common endpoint which extend indefinitely in opposing directions are called opposite rays. All the points on both rays are collinear with each other.

2seg6

 

Subject: 
Geometry
Subject X2: 
Geometry

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