Answer:
The measure of each of the arc in degrees is:
30 degree
Explanation:
We know that the circle is a whole of 360 degrees.
Now when we divide the circumference of a circle into 12 equal arcs, then the measure of each arc in degrees is calculated as the ratio of the 360 degrees to the number of arcs it has been divided.
Hence, the measure of each arc in degrees is:

Hence, the measure in degrees is:
30 degree