Basic Geometric Elements Vocabulary

Part of a line that has two endpoints. It has a beginning and an end.

• Point

• Line

• Line Segment

• Ray

Lines meet at one point.

• Line Segment

• Parallel Lines

• Perpendicular Lines

• Intersecting Lines

An exact location in space

• Point

• Ray

• Line

• Vertex

An endless collection of points along a straight path.

• Point

• Ray

• Line

• Line Segment

Lines that do not intersect but are in the same plane.

• Intersecting Lines

• Parallel Lines

• Perpendicular Lines

• Angles

These are formed when two rays have the same endpoint.

• Rays

• Sides

• Vertex

• Angles

Two rays that form an angle.

• Sides

• Rays

• Vertex

• Line

Part of line that has one endpoint and extends endlessly in the other direction.

• Point

• Ray

• Line Segment

• Side

Lines that form a right angle.

• Parallel Lines

• Perpendicular Lines

• Intersecting Lines

• Rays

The endpoint where two sides meet.

• Angle

• Side

• Vertex

• Ray