A = (-1.12, 0.72)
B = (1.4, 0.86)
u = Vector(A, B)
C = (2.88, 2.06)
v = Vector(B, C)
D = (2.9, 3.38)
w = Vector(C, D)
E = (1.9, 4.36)
z = Vector(D, E)
F: E - u
G: F - v
H: G - w
a = Segment(A, E)
b = Segment(B, F)
c = Segment(C, G)
d = Segment(D, H)