E = (10.976314423076921, 0.973673076923076)
F = (18.19373173076923, 1.1455163461538453)
O = (19.620769573044196, 5.63773225999927)
P = (18.87245154293381, 1.0931107781753109)
t = Segment(O, P)
e_1 = OrthogonalLine(O, t)
Q = Point(e_1)
O'_1 = Rotate(O, 300.00000000000006*°, Q)
μ = Angle(O'_1, Q, O)
f_1 = Line(Q, O'_1)
q_1 = Ray(Q, O'_1)
p_1 = Segment(O, P)
O' = Rotate(O, 285.0*°, P)
X = Angle(O', P, O)
r_1 = Line(P, O')
R = Intersect(f_1, r_1)
s_1 = Ray(P, R)
đa giác4, o, p_2, r_2, q_2 = Polygon(O, P, R, Q)
t_1 = Ray(Q, O)
S = (2.6216055301103873, -3.7125496720221953)
T = (5.015643991648849, -3.7937035181760415)
a_2 = Segment(S, T)
c_2 = Circle(R, a_2)
U = Intersect(c_2, s_1, 2.0)
ν = Angle(U, R, Q)