Answer:
80 i hope this helps! :)
Step-by-step explanation:
we have 80 and 25 out of a 180 line
lets subtract 80 from 180 to get 100.
then subtract 25 from 100 to get 75
so the x is equal to 75 degrees
180 - 75 = 105
105 - 25 = 80
so the measure of angle AGC is 80 degrees
