Question

In an isosceles triangle ABC,AB=AC.Show that angles opposite to the equal sides are equal

Answer 1

In an isosceles triangle ABC,AB=AC.
Angle A and Angle B are equal

Answer 2

First,draw the bisector of angle AD of ABC and then congruent it.By SAS congruency, ∆ABD =~∆ ACD and by cpct ang.C=B