G = (-4.532815211884151, -15.643816819769945)
H = (-2.2716292314445385, -15.78514094354742)
e = Segment(G, H)
A = (16.45381716907101, -0.4514735136912911)
B = (16.45381716907101, 15.871462782607173)
a = Segment(A, B)
b = OrthogonalLine(B, a)
c = OrthogonalLine(A, a)
C = Point(b)
d = OrthogonalLine(C, b)
D = Intersect(c, d)
đa giác1, b_1, c_1, d_1, a_1 = Polygon(B, C, D, A)
f = Segment(A, C)