Points, Lines, Line Segments, & Rays

Front

What is a point?

Back

An exact location.

Front

What is a line?

Back

A straight path that extends in both directions forever.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a ray?

Back

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

Front

What is the name of this ray? (Image of ray AB)

Back

Ray AB.

Front

What is the name of the GREEN line? (Image of line RT)

Back

RT.

Front

What do we call lines that cross each other?

Back

Intersecting lines.

Front

What is the difference between a line and a line segment?

Back

A line extends forever in both directions, while a line segment has two endpoints.

Front

How many points are needed to define a line?

Back

Two points.

Front

What is the symbol for a ray?

Back

A ray is often represented with an arrow on one end.