Answer:
70 degrees
Explanation:
Angle HMK = 50 degrees
Angles LMK, MLK and MKL are equal to 60 degrees, being in a perfectly congruent triangle which they all add up to 180 degrees.
Add 60 to 50 = 110
180 - 110 = 70 degrees, equal to angle HMG.
This is because the line that angles LMK, HMK and HMG are on is supplementary.