Question

If O is centre of circle of given figure then angle O is​

Answer 1

Answer:

I think right angle

Step-by-step explanation:

HOPE IT HELPS YOU

Answer 2

Answer:

52 degree

Step-by-step explanation:

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

∠AOB is the angle at the center and ∠ACB is the angle at the circumference.

∴∠ACB= 21∠AOB= 21(104 o )=52 o