Transversal line

In geometry, a transversal line is a line that passes through two or more other coplanar lines at different points.

In Euclidean geometry if lines "a" and "b" are parallel, and line "t" intersects lines "a" and "b", then corresponding angles formed by line "t" and the parallel lines are congruent.

Alternate Angles

A transversal line creates alternate angles. The alternate interior angles are on opposite sides of the transveral line and inside the lines being transversed. Alternate exterior angles are on opposite sides of the transferal line and outside the lines being transversed.

See this

A line which intersects 2 or more coplanar lines at different points is called a Transversal.

External links

* [http://www.mathwarehouse.com/geometry/angle/interactive-transveral-angles.php Transversal and Angles] Interactive transversal with color coded angles (corresponding, alternate interior etc..)
* [http://www.mathopenref.com/transversal.html Definition and properties of a transversal line] With interactive animation
* [http://www.mathopenref.com/anglescorresponding.html Corresponding angles associated with a transversal line] With interactive animation
* [http://www.mathopenref.com/anglesalternateinterior.html Alternate interior angles associated with a transversal line] With interactive animation
* [http://www.mathopenref.com/anglestransinterior.html Interior angles associated with a transversal line] With interactive animation
* [http://www.mathopenref.com/anglestransexterior.html Exterior angles associated with a transversal line] With interactive animation