A = (-38.138987976901774, -27.710201721137363)
B = (27.812387508558857, -27.567449825247927)
C = (11.53867147967896, 25.25075165384298)
Vieleck1, c, a, b = Polygon(A, B, C)
d = AngularBisector(B, A, C)
e = AngularBisector(C, B, A)
f = AngularBisector(A, C, B)
E = Intersect(d, e)
g = OrthogonalLine(E, a)
D = Intersect(g, a)
r = Segment(E, D)
k = Circle(E, D)
α = Angle(B, A, C)
β = Angle(C, B, A)
γ = Angle(A, C, B)