What are the special angles we can create with parallel lines?

                                  

Transverse- a line that intersects two or more other coplanar lines.

Corresponding angles- angles that are in the same position relative to the transverse and lines.<1=<5 ,<2=<6, <3=<7 ,<4=<8

Corresponding angles conjecture- if two parallel lines are cut by a transverse then corresponding angles are congruent.
<1=<5 ,<2=<6, <3=<7 ,<4=<8

Alternate interior angles conjecture-if two parallel lines are cut by a transverse ,then alternate interior angles are congruent.
<3=<6, <4=<5

Alternate exterior angles conjecture- they are congruent
<3=<6, <4=<5

Consecutive interior/exterior angles conjecture - they are supplementary <1=<8, <2=<7