Points, Lines, and Rays

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 one point and extends infinitely in one direction.

Front

What is a point?

Back

A point is an exact location in space with no size.

Front

What are parallel lines?

Back

Parallel lines are lines that never intersect and are always the same distance apart.

Front

What are intersecting lines?

Back

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

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

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 does it mean for lines to be parallel?

Back

It means they will never meet, no matter how far they are extended.

Front

What is the symbol for a line segment?

Back

A line segment is often represented by two endpoints with a line over them, like AB.