reasoning. Ltercise #3: In the diagram below, it is given that AB = CB and BD bisects ZABC . We would like to prove that BD must also bisect ZADC. (a) What would need to be proven to show that BD bisects ZADC? 3 (b) What triangles should we show congruent in order to show (a)? 2. 4. (c) Prove these triangles are congruent and that BD bisects ZADC. Reasons Statements

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