gokulol533 gokulol533

24-12-2021
Mathematics

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Triangle A'B'C' is a reflection of triangle ABC across line BC. Prove that ray BC is the angle bisector of angle ABA'.

Triangle ABC is a reflection of triangle ABC across line BC Prove that ray BC is the angle bisector of angle ABA class=

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RealGiveaway RealGiveaway

24-12-2021

Answer is below in the picture:-

(From the problem, we know (triangle)ABC (round of equal of) (triangle)A'B'C'. So, <A'B'C' = <ABC {the properties of congruent triangles}. So, ray BC is the angle, bisector of angle ABA')

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