Question

show that the bisector of the vertical angle of an isosceles triangle bisects base at right angle.


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Answer 1

Answer:

prove by congruency that bisector of vertical angle of an isosceles triangle bisects base at right angle

Answer 2

Since we want to prove that the bisector of the vertical angles of an isosceles triangle bisects the base at right angle, we need to consider the triangle congruence. There is a theorem which says that if two angles, a and b, are equal, then they have two opposite sides, r and t, respectively, which are also equal.