A: (2, -3, 0)
B: (3, 2, 0)
f = Segment(A, B)
C: (-2, 3, 0)
g = Segment(B, C)
D: (-3, -2, 0)
h = Segment(C, D)
i = Segment(A, D)
P_1: (2.6666, 0.3333, 0)
P_2: (4, 7, 0)