A = (1.1859647888120275, 6.301335802358381)
B = (7.528542600400108, 6.368099779322465)
a = Segment(A, B)
D = (-0.594407930230241, 2.228733207549192)
b = Segment(A, D)
c = Line(D, a)
d = Line(B, b)
C = Intersect(c, d)
đa giác1, a_1, b_1, d_1, c_1 = Polygon(A, B, C, D)