A = (-0.1, 9.43)
B = (20.9, 9.43)
C = (20.9, -20.27)
D = (-0.1, -20.27)
a = Segment(A, D)
b = Segment(A, B)
c = Segment(B, C)
d = Segment(D, C)

Tool: Outil1
Input: A, B, C, P
Output: P'

v = Vector(P, B)
w = Vector(C, P)
A' = Translate(A, v)
A'' = Translate(A', v)
P' = Translate(A'', w)