In the adjoining figure, it is given that AB || CD, ∠BAO = 108∘ and ∠OCD = 120∘ then ∠AOC = ________.
120°
72°
132°
150°
Mark (✓) against the correct answer In the given figure, AB || CD. ∠OAB = 150° and ∠OCD = 120°. Then ∠AOC = ? (a) 80° (b) 90° (c) 70° (d) 100°