# All the angles formed by two parallel lines and a transversal (cheat sheet)

When two parallel angles are cut across by a transversal, several different types of angles are formed.

They are:

- Vertical angle
- supplementary angle
- corresponding angle
- consecutive angle
- alternate interior angle
- alternate exterior angle

Here is a cheat sheet that can be used to identify all the angles formed two parallel lines and a transversal.

**1 & 4 are vertical angles ( <1 = <4)****2 & 3 are vertical angles ( <2 = <3)****5 & 8 are vertical angles ( <5 = <8)****6 & 7 are vertical angles ( <6 = <7)****1 & 2 are supplementary angles ( <1 + <2 = 180)****1 & 3 are supplementary angles ( <1 + <3 = 180)****2 & 4 are supplementary angles ( <2 + <4 = 180)****3 & 4 are supplementary angles ( <3 + <4 = 180)****5 & 6 are supplementary angles ( <5 + <6 = 180)****5 & 7 are supplementary angles ( <5 + <7 = 180)****6 & 8 are supplementary angles ( <6 + <8 = 180)****7 & 8 are supplementary angles ( <7 + <8 = 180)****1 & 5 are corresponding angles ( <1 = <5)****2 & 6 are corresponding angles ( <2 = <6)****3 & 7 are corresponding angles ( <1 = <5)****4 & 8 are corresponding angles ( <4 = <8)****3 & 6 are alternate interior angles ( <3 = <6)****4 & 5 are alternate interior angles ( <4 = <5)****1 & 8 are alternate exterior angles ( <1 = <8)****2 & 7 are alternate exterior angles ( <2 = <7)****3 & 5 are consecutive interior angles (supplementary angles) ( <3 + <5 = 180)****4 & 6 are consecutive interior angles (supplementary angles) ( <4 + <6 = 180)****1 & 7 are consecutive exterior angles (supplementary angles) ( <1 + <7 = 180)****2 & 8 are consecutive exterior angles (supplementary angles) ( <2 + <8 = 180)**