g

A, B, C, S_1, S_2, D bewegen

A_{1} = (-0.72, -1.38)
D = (22.96, 0.98)
f = Line(A_{1}, D)
S_1 = (6.28, -5.82)
a = OrthogonalLine(S_1, f)
A = (0.72, -4.62)
B = (3.88, -1.76)
C = (1.7, 3.22)
d1, g, e, f_1 = Polygon(A, B, C)
A' = Mirror(A, a)
B' = Mirror(B, a)
C' = Mirror(C, a)
h = Segment(C', B')
i = Segment(B', A')
j = Segment(A', C')
n = OrthogonalLine(S_1, a)
S_2 = Point(n)
p = OrthogonalLine(S_2, n)
A'' = Mirror(A', p)
B'' = Mirror(B', p)
C'' = Mirror(C', p)
k = Segment(A'', B'')
l = Segment(B'', C'')
m = Segment(C'', A'')
u = Vector(A, A'')
v = Vector(B, B'')
w = Vector(C, C'')