A: (5, 0, 0)
B: (5, 5, 0)
C: (0, 5, 0)
D: (0, 0, 0)
S: (2.5, 2.5, 3)
f = Segment(A, B)
g = Segment(B, C)
h = Segment(C, D)
i = Segment(D, A)
j = Segment(A, S)
k = Segment(B, S)
l = Segment(C, S)
m = Segment(D, S)
F: (2.5, 2.5, 0)
n = Segment(S, F)