A = (0.8326, 0.4126)
B = (4.06, 1.9308)
p = Line(A, B)
C = Point(p)
A' = (0.309, -2.4736)
D = (12.3364, -5.0146)
p' = Line(A', D)
O = Intersect(p, p')
h = Line(A', A)
S = Point(h)
i = Line(S, B)
j = Line(S, C)
B' = Intersect(p', i)
C' = Intersect(p', j)
k = Line(A', B)
g = Line(A, B')
P = Intersect(k, g)
q_{1} = Line(A', C)
f = Line(C', A)
Q = Intersect(q_{1}, f)
l = Line(C', B)
m = Line(C, B')
R = Intersect(l, m)
n = Line(P, Q)
q = Segment(A', C)
r = Segment(A, C')
s = Segment(A', B)
t = Segment(B', A)
a = Segment(B, C')
b = Segment(B', C)