A = (2.06, 0.58)
B = (-3.5, -2.66)
C = (7.62, -2.92)
D = (3.1, 5.7)
a = Line(A, B)
b = Line(A, C)
c = Line(A, D)
E = (0.26, 0.58)
d = Circle(A, E)
α = Angle(C, A, D)
F = Rotate(B, -α, A)
β = Angle(F, A, B)
e = Line(F, A)
Z = Intersect(d, e, 2)
X_. = Mirror(Z, b)
Y = Mirror(X_., c)
f = Segment(A, X_.)
g = Segment(A, Y)
h = OrthogonalLine(Z, e)
i = OrthogonalLine(X_., f)
j = OrthogonalLine(Y, g)
G = Intersect(i, j)
H = Intersect(j, h)
I = Intersect(h, i)
poly1, g_1, h_1, i_1 = Polygon(H, I, G)