The sum of the measures of the exterior angles of a polygon, taken one per vertex, is 360.
z - 13 + z + 10 + z = 360
3z - 3 = 360
3z = 363
z = 121
z - 13 = 121 - 13 = 108
Answer: z - 13 = 108 degrees
Answer:
the third one.
its D
Step-by-step explanation:
