Final answer:
The measure of angle FMG is 0 degrees.
Step-by-step explanation:
To find the measure of angle FMG, we can use the fact that the sum of the angles in a triangle is 180 degrees. Since triangle EMG has angle EMG equal to 120 degrees and angle EMF equal to 60 degrees, we can subtract these angles from 180 to find the measure of angle FMG.
180 - 120 - 60 = FMG = 0 degrees
Therefore, the measure of angle FMG is 0 degrees.