Chapter 2 Theorems: MEMORIZE
Theorem 2-1 (pg101): Congruence of segments is reflexive, symmetric, and transitive.
OR
1) Reflexive Property of congruent segments
2) Symmetric Property of congruent segments
3) Transitive Property of congruent segments
Theorem 2-2 (pg107): If two angles form a linear pair, then they are supplementary angles.
Theorem 2-3 (pg107): Congruence of angles is reflexive, symmetric, and transitive.
OR
1) Reflexive Property of congruent angles
2) Symmetric Property of congruent angles
3) Transitive Property of congruent angles
Theorem 2-4 (pg108): Angles supplementary to the same angle or to congruent angles are congruent.
Theorem 2-5 (pg109): Angles complementary to the same angle or to congruent angles are congruent.
Theorem 2-6 (pg109): All right angles are congruent
Theorem 2-7 (pg109): Vertical angles are congruent
Theorem 2-8 (pg110): Perpendicular lines intersect to form four right angles.
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