Types of Lines

Front

What are parallel lines?

Back

Lines that never intersect and are always the same distance apart.

Front

What happens to parallel lines when extended?

Back

They never meet or cross each other.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What are intersecting lines?

Back

Two or more lines that cross each other in a plane.

Front

How many points do two intersecting lines have in common?

Back

One point.

Front

What is a line segment?

Back

A part of a line that is bound by two endpoints.

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 do we call lines that are always the same distance apart?

Back

Parallel lines.

Front

Can parallel lines ever intersect?

Back

No, parallel lines never intersect.

Front

What is the angle formed by perpendicular lines?

Back

90 degrees.