In the given figure, O is the centre of a circle in which ∠OAB = 20° and ∠OCB = 50°. Then, ∠AOC = ?
A. 50°
B. 70°
C. 20°
D. 60°
Answer:D
In the given figure, O is the centre of a circle in which ∠OAB = 20° and ∠OCB = 50°. Then, ∠AOC = ?
A. 50° B. 70° C. 20° D. 60°