Answer:
x=60 degrees
Explanation:
Since they gave you the arc lengths, you have to add them all up and make it equal to 360, or write an equation:
(x+83)+(x+14)+(x+83)=360
then, first simplify the left side of the equation:
3x+180=360
then, subtract 180 from both sides:
3x=180
finally, divide both sides by 3:
x=60
So, x=60 degrees
Hope this helps! :)