E_1 = (-6.057978163022511, -11.480476279221453)
E = (-2.153662517700241, -6.7734041460759125)
F = (9.048439380560858, -6.809893077340607)
a = Segment(E, F)
b = LineBisector(a)
D = Point(b)
K = Intersect(b, a)
c = Segment(E, K)
d = Segment(K, F)
e = Segment(F, D)
f = Segment(D, E)
g = Segment(D, K)
α = Angle(F, K, D)
β = Angle(E, D, K)
γ = Angle(K, D, F)