Question
Circle O is shown below. If mR = 28° , what is the mO? (1 point) Responses 28° 28degree 56° 56degree 14° 14degree 180°
Answers
GPT-4o mini
In a circle, the measure of an angle formed by two chords is half the measure of the intercepted arc. Given that \( mR = 28° \) is the measure of the arc R, if O is the angle formed at the center of the circle by the same endpoints of the arc (assuming O is the center of the circle), then:
\[
mO = 2 \times mR = 2 \times 28° = 56°
\]
Therefore, the measure of angle O, \( mO \), is \( \boxed{56°} \).
\[
mO = 2 \times mR = 2 \times 28° = 56°
\]
Therefore, the measure of angle O, \( mO \), is \( \boxed{56°} \).