avec (BH)//(AI)

A = (9.627861566092314, -4.02242243943523)
B = (17.388788918277548, -5.534234769544454)
a = Segment(A, B)
b = OrthogonalLine(A, a)
D = Point(b)
c = OrthogonalLine(D, b)
d = Segment(D, B)
D_1 = Midpoint(d)
e = Ray(A, D_1)
C = Intersect(c, e)
f = Segment(C, B)
g = Segment(C, D)
h = Segment(D, A)
E = (-1.0676196378262093, -4.127520220510678)
F = (7.243014508515259, -4.127520220510678)
G = (-1.6918283301345753, -4.034823501985871)
H = (7.618889432888152, -4.153873702472043)