Question

Need help with this review how would I find the measure?

Answer 1

We have to find the measure of angle AOB, being O the center of the circle.

The angles at the centre of a circle, like AOB, are twice the angle at the circumference of the circle of the same arc, like ACB.

Then, we can write:

`m\angle AOB=2\cdot m\angle ACB=2\cdot25\degree=50\degree`

Answer: The measure of AOB is 50°.