Answer:
1. (19x - 49)+(5x + 37) = 180
2. 77°
Step-by-step explanation:
1. Since the two arc measures will equal 180°, you can write the equation (19x - 49)+(5x + 37) = 180
2. By solving the equation, we can find that x=8. Plugging in the value for arc CD's equation, you will find that it is equal to 77°.
