A = (-1.7414884809559585, 0.5538162153294955)
B = (4.557298977030613, 2.247771420413983)
Δ = Line(A, B)
C = (-0.3298591433855523, 1.9946516771254965)
D = (2.0553076683713414, 0.2714903478154142)
b = OrthogonalLine(C, Δ)
c = OrthogonalLine(D, Δ)
E = Point(b)
n_1 = Vector(C, E)
F = Point(c)
n_2 = Vector(D, F)
G = Point(c)
H = Point(c)
n_3 = Vector(G, H)
khoangcachAB = Distance(A, B)