Answer:
C) 55 degrees
Step-by-step explanation:
You need the following geometry definition.
Definition:
The measure of an arc of a circle is equal to the measure of the central angle that intercepts it.
Angle AOB is a central angle since its vertex is the center of the circle.
According to the theorem above, the measure of arc AB is the same as the measure of central angle AOB.
measure of arc AB = measure of angle AOB
measure of arc AB = 55 degrees
Answer: C) 55 degrees
