Question

In Fig.10.4, if ∠ABC = 20o, then ∠AOC is equal to:​

Answer 1

Answer:

$\huge \red{AηsωeR⭐}$✍

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=∠ABC

⟹∠AOC=2×200

⟹∠AOC=400