Question

O is the centre of circle. find Angle ABC. ​

Answer 1

Answer:

a is correct

Step-by-step explanation:

if we draw a line joining AB and then angle sum property

Answer 2

Answer:

The question is a bit wrong here,

The Point B should be in position of C.

Then, Angle ABC Will be half the angle made by

reflex AOC

Which is 1/2 × (360-130)° = 115°