In ΔABC,if AB = AC and ∠B = 50°,


In ΔABC,if AB = AC and ∠B = 50°, then ∠C is equal to

(a) 40°                  

(b) 50°                    

(c) 80°                    



(b) Given, $\triangle A B C$ such that $A B=A C$ and $\angle B=50^{\circ}$.

In $\triangle A B C$,   $A B=A C$   [given]

$\Rightarrow \quad \angle C=\angle B \quad$ [anqles opposite to equal sides are equal]

$\Rightarrow \quad \angle C=50^{\circ} \quad\left[\because \angle B=50^{\circ}\right.$ (given)]

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