A = Point(yAxis)
B = (4, 4)
C = (8, 4)
D = Point(yAxis)
E = Point(xAxis)
F = (8, 0)
f = Segment(D, B)
g = Segment(E, B)
h = Segment(D, A)
i = Segment(A, E)
j = Segment(B, C)
k = Segment(C, F)
l = Segment(E, F)