Question

In a triangle ABC, angle A = 70 and AB=AC than find C​

Answer 1

Answer:

Given:- A=70, AB=AC

To Find:- C

∆ABC AB=AC, therefore it is an Isosceles triangle.

it means <B=<C.

So, if we find <B we will get our answer.

<A+<B+<C= 180°

70°+ x+ x = 180°

2x + 70° =180°

2x =180°-70°

2x = 110°

x = 110°/2

x = 55°

<B =55°

<B = <C = 55°