Question

In the figure below, F,G,H and J are collinear. FG, GK, and HK are lone segments of equivalent length, and the measure of JHK is 120 degrees. What is the degree measure of GFK?

Answer 1

 The answer would be 30 degrees because points F, G, H, and J are collinear, all you would have to do is figure out /_GHK by subtracting 180 degrees from it.

Like this  :

JHK = 180 degrees - 120 degrees = 60 degrees