1.1 Vocabulary

An exact location in space with no size or shape.

• Point

• Line

• Line Segment

• Plane

A straight continuous arrangement of points that extends infinitely in two directions with no thickness.

• Point

• Line

• Plane

• Line Segment

Part of a line consisting of one endpoint and extending infinitely in one direction.

• Ray

• Line

• Angle

• Line Segment

Two or more lines that never intersect and are in the same plane.

• Parallel

• Perpendicular

• Angle

• Collinear

The point that divides a line segment into two congruent segments.

• Midpoint

• Collinear

• Plane

• Perpendicular

Two or more points that lie on the same line.

• Collinear

• Angle

• Bisector

• Line Segment

A flat surface that continues infinitely in all directions.

• Plane

• Collinear

• Ray

• Line

Part of a line consisting of two endpoints and all the points in between.

• Line Segment

• Collinear

• Ray

• Line

Cutting a segment in half

• Bisect

• Line Segment

• Perpendicular

• Point

Which is the notation for the diagram shown?

• 
• 
• 
•