To find the central angle of the arc in degrees, you can use the formula:
Central Angle (in degrees) = (Arc Length / Circumference) x 360
Given:
Arc Length = 1
Circumference = 6
Substitute the values into the formula:
Central Angle = (1 / 6) x 360
Central Angle = (1/6) x 360
Central Angle = 60 degrees
Therefore, the central angle of the arc is 60 degrees.