Question

In a triangle ABC, if AB = AC, and < A= 70º find < B and <C.​

Answer 1

In the triangle ABC , AB = BC , <A = 70°

since the two sides AB and AC are equal therefore, <A and < B are also equal. so, <B = <A = 70°

<A+<B+<C = 180°

=> 70°+70°+<C = 180°

=> <C = 180°-140°

=> <C = 40°

Answer 2

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