v: (-4, 4, 0)
A: (-2 | 0 | -2)
u: (4, 0, 4)
C: A + u
B: C + v
d1, c, a, b = Polygon(A, C, B)
d = Distance(A, a)
e = Distance(C, b)
f = Distance(B, c)
w: (0, -4, -4)
g: u + v + w