Author: IREM de Paris-Nord

A_0 = (3.061616997868383E-16, 5)
A_1 = (-4.755282581475767, 1.5450849718747375)
A_2 = (-2.9389262614623664, -4.045084971874736)
A_3 = (2.9389262614623646, -4.045084971874738)
A_4 = (4.755282581475768, 1.545084971874736)
a = Segment(A_1, A_0)
b = Segment(A_0, A_4)
c = Segment(A_4, A_3)
d = Segment(A_3, A_2)
e = Segment(A_2, A_1)