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1.2 Using Segments and Congruence Notes 1 1.2 Use Segments and Congruence Postulate/Axiom: A rule that is ACCEPTED WITHOUT proof Theorem: A rule that CAN BE proved using definitions, postulates, axioms, corollaries and other theorem. Ruler Postulate Points on a line can be matched one to one with the real numbers called coordinates. Always Positive. Distance between two points: #1 S U N #2 R A Y What is the difference in these two pictures? Segment Addition Postulate If B is between A and C, then AB + BC = AC segments with equal length. Congruent segments: The length of is equal to the length of is congruent to OR
