m < HEG is equal to m< FED ( Vertical angles are congruent)
When we take the ratio of side FE and HE, we will have;
FE/ HE = 3.6 / 2 = 1.8
similarly, when we take the ratio of side ED and EG, we will have
ED/EG = 5.4 / 3 = 1.8
When we have 2 angles that is equal and the sides are similar( they both have the same ratio), then this shows that triangle FED and HEG are similar