9 ES36 : Dictée géométrique
Author: Frédéric Chanez

A = (-1, 0)
O = (14, -2)
c = Circle(O, 3)
C_1 = Point(xAxis)
B = Point(c)
a = Line(B, O)
C = Intersect(c, a, 2)
b = Segment(C, B)
d = OrthogonalLine(C, b)
e = Circle(C, 4)
M' = Intersect(e, d, 2)
M = Intersect(e, d, 1)
f = Segment(B, M)
R = Intersect(c, f, 2)
α = Angle(C, B, R)
g = Segment(C, R)
β = Angle(M, C, R)
h = 6 (slider from 0 to 6, step 1)
i = Segment(O, C)
j = Segment(C, M)