E_1 = (10.976314423076921, 0.973673076923076)
F = (18.19373173076923, 1.1455163461538453)
B = (1.8012540250447255, 4.708552370304124)
A = (-0.5800027057245085, -0.004863014311270231)
p = Segment(B, A)
q = OrthogonalLine(B, p)
K' = Rotate(B, 295.0*°, A)
θ = Angle(K', A, B)
r = Ray(A, K')
D = Point(q)
s = OrthogonalLine(D, r)
E = Intersect(s, r)
đa giác3, l_1, n_1, m_1, k_1 = Polygon(A, E, D, B)
ι = Angle(D, E, A)
κ = Angle(A, B, D)
λ = Angle(B, D, E)
S = (2.6216055301103873, -3.7125496720221953)
T = (5.015643991648849, -3.7937035181760415)
a_2 = Segment(S, T)