When faced with 2 parallel lines and a transversal – that is a line that crosses both parallel lines – you automatically end up with a number of angle relationships which you ned to be familiar with. The diagrams below show these relationships.

**Alternate Angles (also known as Z-angles)**

**Corresponding Angles (also known as F-angles)**

**Co-interior Angles (also known as C-angles)**

When faced with 2 parallel lines and a transversal – that is a line that crosses both parallel lines – you automatically end up with a number of angle relationships which you ned to be familiar with. The diagrams below show these relationships.

Alternate Angles (also known as Z-angles)Corresponding Angles (also known as F-angles)Co-interior Angles (also known as C-angles)## Nouri Dib