Points, Lines, Line Segments, & Rays

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Front

What is a line?

Back

A line is straight and extends in both directions forever.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is a ray?

Back

A ray is a part of a line that starts at a point and extends infinitely in one direction.

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet and are always the same distance apart.

Front

How do you name a line segment?

Back

A line segment is named by its two endpoints, for example, segment AB.

Front

How do you name a ray?

Back

A ray is named by its starting point and another point on the ray, for example, ray AB.

Front

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

Back

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

Front

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

Back

A ray has one endpoint and extends infinitely in one direction, while a line segment has two endpoints.

Front

What does it mean for lines to be intersecting?

Back

Intersecting lines are lines that cross each other at one point.