Basic Geometry Line Ray Point

The most basic element of Geometry.

• Point

• Segment

• Line

• Plane

A collection of points that continue in opposite directions with no end.

• Point

• Segment

• Line

• Plane

A flat surface of points that continues infinitely in all four directions.

• Point

• Segment

• Line

• Plane

A collection of points that only extends in one direction.

• Segment

• Ray

• Plane

• Point

Two rays that share a common endpoint.

• Angle

• Plane

• Vertex

• Line

The common endpoint of two rays that make up an angle.

• Angle

• Vertex

• Line

• Plane

Two coplanar lines that never meet and are always an equal distance from each other.

• Parallel

• Perpendicular

• Intersecting

• Skew

Two coplanar lines that meet to form four right angles.

• Parallel

• Perpendicular

• Intersecting

• Skew

Two coplanar lines that meet at a common point.

• Parallel

• Perpendicular

• Intersecting

• Skew

A point that divides a segment into two congruent segments.

• Vertex

• Endpoint

• Angle bisector

• Midpoint