If in a triangle ABC as drawn in the figure, AB = AC and ∠ACD = 120°, then ∠A is equal to:

If in a triangle ABC as drawn in the figure, AB = AC and ∠ACD = 120°, then ∠A is equal to:

[A]70°
[B]60°
[C]50°
[D]80°

60°
∠ACB = 180° – 120° = 60°
AB = AC
∴ ∠ABC = ∠ACB = 60°
∴ ∠BAC = 60°
Hence option [B] is the right answer.

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