Specchio

Punto-immagine

A = (-2, 3)
B = (-1, 1)
C = (3, 1)
specchio = Segment(B, C)
d = Segment(A, B)
b = OrthogonalLine(B, specchio)
A' = Mirror(A, b)
f = Line(B, A')
c = Segment(A, C)
e = OrthogonalLine(C, specchio)
A'_1 = Mirror(A, e)
g = Line(C, A'_1)
D = Intersect(f, g)
poly1, b_1, c_1, a'_1, a' = Polygon(B, C, A'_1, A')