A1-A2

A3-A4-A5

A6-A7

A = (1.58, 0.56)
B = (7.26, -0.06)
C = (4.52, 3.04)
poly1, c, a, b = Polygon(A, B, C)
d = OrthogonalLine(A, b)
e = Circle(A, C)
E = Intersect(e, d, 1)
f = OrthogonalLine(A, c)
g = Circle(A, B)
D = Intersect(g, f, 1)
poly2, e_1, a_1, c_1 = Polygon(A, C, E)
poly3, b_1, a_2, d_1 = Polygon(A, D, B)
M = Midpoint(a)
h = Line(A, M)
i = Line(E, D)
N = Intersect(h, i)
j = Segment(A, M)
k = Segment(E, D)
l = Line(B, E)
m = Line(C, D)
n = Segment(B, E)
p = Segment(C, D)
texte1: "AM = " + j + ""
texte2: "ED = " + k + ""
α = Angle(D, N, A)
o = true
q = true
texte3: "BE = " + n + ""
texte4: "CD = " + p + ""
r = true
β = Angle(C, A, E)
γ = Angle(D, A, B)