Geometry Concepts

Line Definitions

• Line

  • A straight path that continues infinitely in both directions.

• Line Segment

  • A part of a line that has two defined endpoints.

• Ray

  • A portion of a line that has one endpoint and extends infinitely in one direction.

Parallel Lines

• Definition

  • Lines that remain equidistant from each other and do not intersect at any point.

• Formation

  • Formed by two rays that share the same endpoint while extending in opposite directions.

Vertex and Angles

• Vertex

  • The point where two rays or angles meet, forming an angle.

• Right Angle

  • An angle that measures exactly $90$ degrees.

• Perpendicular Lines

  • Two lines that intersect at a right angle, creating a $90$ degree angle between them.