A circle is centered at an angle's vertex, and the angle's rays subtend an arc that is 78.3 cm long. 1 360 th of the circle's circumference is 0.54 cm long. What is the angle's measure in degrees? degrees A circle with a circumference 468 cm long is centered at an angle's vertex, and the angle's rays subtend an arc that is 288.6 cm long. What is the angle's measure in degrees? degrees