Theorems and Postulates

Corresponding Angles Postulate - If 2 parallel lines are transversaled then pairs of corresponding angles are congruent

Alternate/Consecutive Interior Angles Theorem - if 2 parallel lines are transversaled then pairs of alt. interior angles are congruent

Alternate/Interior Exterior Angles Theorem - if 2 lines are transversaled then pairs of consecutive interior angles are supplementary

Perpendicular Transversal Theorem - In a plane, if a line is perpendicular to one of two parallel lines, then it is perpendicular to the other

Parallel Postulate - pffffftttttttttttttt you don’t need to know this silly

Converse of Corresponding Angles Postulate - if a pair of corresponding angles are congruent, then the 2 lines are parallel

Alternate Exterior Angles Converse - etc.

Consecutive interior Angles Converse - more etc.

Alternate Interior Angles Converse - even more etc.

Perpendicular Transversal Converse - even more, more etc.