In ΔABC, AB = AC and ∠B=50∘. Then ∠A=?(a) 40∘ (b) 50∘ (c) 80∘ (d) 130∘

In ΔABC, AB = AC and ∠B=50∘. Then ∠A=?(a) 40∘ (b) 50�

1.	In ΔABC, AB = AC and ∠B=50∘. Then ∠A=?(a) 40∘ (b) 50∘ (c) 80∘ (d) 130∘
Answer» $I n Δ A B C, AB = AC and ∠ B = 50^{\circ} . T h e n ∠ A = ? (a) 40^{\circ} (b) 50^{\circ} (c) 80^{\circ} (d) 130^{\circ}$