Théorème du triangle rectangle inscrit
Author: m@ths et tiques 2012

O = (2.02, 1.6)
B_1 = (5.96, 1.76)
c = Circle(O, B_1)
C = Point(c)
a = Line(C, O)
B = Intersect(c, a, 2)
A = Point(c)
poly1, e, d, c_1 = Polygon(B, C, A)
b = Segment(O, A)
α = Angle(B, A, C)
f = Segment(O, C)
g = Segment(O, B)
A' = (-2.62, 4.8)
poly2, d_1, b_1, c_2 = Polygon(B, C, A')
β = Angle(B, A', C)