A transversal is a line that intersects or crosses two or more lines.

In the figure below:

  • 1) the transversal (line \(k\)) crosses or intersects two lines that are NOT parallel
  • 2) the transversal (line \(m\)) crosses or intersects parallel lines
  • 3) the transversal (line \(n\)) crosses or intersects three lines

transversal