Médiatrices et cercle circonscrit
Author: m@ths et tiques 2012

A = (0.56, -1.08)
B = (3.82, 3.54)
C = (8.38, -2.4)
poly1, c, a, b = Polygon(A, B, C)
d = LineBisector(b)
e = LineBisector(c)
f = LineBisector(a)
D = Intersect(e, c)
E = Intersect(f, a)
F = Intersect(d, b)
g = Segment(A, D)
h = Segment(D, B)
i = Segment(B, E)
j = Segment(E, C)
k = Segment(C, F)
l = Segment(F, A)
O = Intersect(d, e)
p = Circle(O, C)
α = Angle(O, E, C)
β = Angle(A, D, O)
γ = Angle(C, F, O)