Hai đường thẳng cắt nhau

A_1 = (12.622762379421225, -6.992562057877808)
B = (20.15966173633441, -1.5915266881028942)
a = Line(A_1, B)
C_1 = (13.702969453376205, -1.2969247588424433)
C = (21.018917363344055, -5.642303215434084)
b = Line(C_1, C)
A = Intersect(a, b)