Question

In the figure, if angle ABC = 60° then find Angle AOC =?
please give me great solution ​

Answer 1

Answer:

We know that the angle at the centre of the circle is twice the angle at the circumference subtended by the same arc.

Thus,

   ∠AOC=2×∠ABC

⟹∠AOC=2×200

⟹∠AOC=400