# Transversals

### A Transversal is a line that crosses at least two other lines.

The

**red line is the transversal**in each example:

Transversal crossing two lines | this Transversal crosses two parallel lines | ... and this one cuts across three lines |

## Pairs of Angles

When parallel lines get crossed by a transversal many angles are the same, as in this example:

See Parallel Lines and Pairs of Angles to learn more.