Section 2.7 Proving Segments Relationships

Ruler Postulate (2.8)
-Given any 2 points, A & B on a line, A corresponds 0 and B corresponds to a positive real number
Segment Addition Postulate (2.9)
-If point B is between A and C, then AB + BC = AC
Theorem 2.2 : Properties of Segment Congruence
-Segment congruence is:
-Reflexive: For any segment AB, AB=~AB
-Symmetric: If segment AB=~CD, then CD=~AB
-Transitive: If segment AB=~CD & CD=~EF, then AB=~EF