In a circle, the angle at the center of the circle is twice the angle at the circumference when they intercept the same arc. Therefore, if mR is 28°, then mO is twice that, which is 56°.
So, the answer is 56°.
Circle O is shown below. The diagram is not drawn to scale. If mR = 28°, what is mO? (1 point) Responses 14° 14° 28° 28° 56° 56° 112° 112° Skip to navigation
1 answer