A = (5.32, -3.3)
B = (10.96, -3.42)
poli1, a, b, c, C = Polygon(A, B, 3)
d = LineBisector(A, B)
e = LineBisector(B, C)
f = LineBisector(C, A)
D = (11.61756574004508, -6.8321863260706195)
D' = Mirror(D, f)
D'' = Mirror(D', e)
E = Intersect(e, f)
α = Angle(D, E, D'')
F = Point(c)
G = Point(c)