A = (-18.931272510308766, 10.134911287327775)
B = (-5.371012775636291, 7.3240146225095595)
poly1, a, b, c, C = Polygon(A, B, 3.0)
d = Circle(A, a / 3.0)
e = Circle(B, b / 3.0)
f = Circle(C, c / 3.0)
D = Intersect(d, a, 1.0)
E = Intersect(e, b, 1.0)
F = Intersect(f, c, 1.0)
g = Segment(A, E)
h = Segment(B, F)
i = Segment(C, D)
H = Intersect(g, i)
I = Intersect(g, h)
J = Intersect(h, i)
α = Angle(I, H, J)
β = Angle(H, J, I)
γ = Angle(J, I, H)