Warm-UpFind the Key Steps Prove AB = CD A) B) C) D) A B O CD X Y ANSWER TO 4-6 Side #1#2 1) Definition of Segment Bisector 2) Vertical Angles are Congruent 3) SAS 4) CPCTC 5) Vertical Angles are Congruent 6) ASA 7) CPCTC 1. SSS 2. CPCTC 3. Vert. Angles are Congruent 4. ASA 5. CPCTC 6. Supps to congruent angles are congruent #3 ASA Answers to 4-3 Side #1 1)Given 2)Vert. Angles cong. 3) SAS 4) CPCTC #2 1) Given 2) Corr. Angles are cong. 3) ASA 4) CPCTC5) corr. angles cong, then parallel #3 1) Given 2) Def of mdpt.3) Reflexive 4) SSS5) CPCTC6) Def of