Unit 10 Lines, Line Segments, Rays Vocabulary

A part of a line with one endpoint that extends forever in one direction

• Point

• Ray

• Line Segment

• Line

A straight path that extends forever in opposite directions

• Point

• Ray

• Line Segment

• Line

A part of a line with two endpoints

• Vertex

• Point

• Line Segment

• Line

An exact location in space

• Vertex

• Point

• Line Segment

• Line

Two rays joined at a common endpoint called the vertex:

• Vertex

• Point

• Line Segment

• Angle

The point on an angle where two rays meet

• Vertex

• Point

• Line Segment

• Angle

Lines or segments in a plane that stay the same distance apart and never meet or cross

• Parallel Lines

• Perpendicular Lines

• Intersecting Lines

Lines or segments that meet or cross at one point

• Parallel Lines

• Perpendicular Lines

• Intersecting Lines

Lines or segments that meet or intersect to form right angles

• Parallel Lines

• Perpendicular Lines

• Intersecting Lines

What does this picture show?

• Point

• Ray

• Line Segment

• Line

• Angle