Question

In the diagram, the measure of angle ACB is 25 degrees. What is the measure of angle AOB?

Answer 1

50 degrees

Explanation:

There is a rule that says, x=2x, which means angle with 2 endpoints at the circumference and touches the center of the circle(AOB in this case) is twice the angle that is formed from the same endpoints and touches the circumference. (This is a overcomplicated definition)

So, if ACB is 25degrees, then AOB is twice that which is 50degrees.