E_1 = (-6.057978163022511, -11.480476279221453)
B = (6.3482584669734905, 1.9839393574506787)
C = (25.796858831055474, 1.8014947011272082)
a = Segment(B, C)
b = LineBisector(a)
A = Point(b)
D = Point(a)
D' = Mirror(D, b)
c = OrthogonalLine(D, a)
d = OrthogonalLine(D', a)
E = Point(c)
e = OrthogonalLine(E, c)
F = Intersect(d, e)
đa giác1, b_1, a_1, c_1 = Polygon(B, A, C)
đa giác2, d_1, e_1, f, d' = Polygon(D, E, F, D')