Intersections de droites

A = (9.32, 2.98)
B = (14, 3.44)
a = Line(A, B)
C = (8.56, 1.12)
D = (16.4, 0.34)
b = Line(C, D)
E = (11, -0.76)
F = (19.86, 2.44)
c = Line(E, F)