| A | B |
|---|
| Defn. of Midpoint | A point that divides a segment into 2 congruent segments. |
| Defn. of Congruent Segments | Congruent segments have the same measure. |
| Segment Addition Postulate | AB + BC = AC |
| Transitive Property | If AB=MN and BC=MN then AB=BC |
| Congruent Supplements Theorem | If angle A supp angle B and Angle C supp angle B then angle A = angle B |
| Defn of Supplementary Angles | the sum of supplementary angles is 180 degrees |
| Defn of Complementary Angles | The sum of complementary angles is 90 degrees |
| Perpendicular Lines | Perpendicular lines form a right angle |
