Answer:
x = 140 degrees
Step-by-step explanation:
Lets say that the other part of the circle we don't know is y. Because the chords are equal distance, that means that the amount of circle the cut off is equal so y also equals 100.
And y + x + 100 + 20 = 360
100 + x + 100 + 20 =360
x + 220 = 360 Subtract 220 from both sides.
x = 140
