A = (20, 0)
B = (24, 4)
a = Vector(A, B)
C = (22, -2)
D = (30, 6)
b = Vector(C, D)
E = (29.970717999999998, -10)
F = (17.970717999999998, -2)
c = Vector(E, F)
G = (28, -2)
H = (34, -6)
d = Vector(G, H)