N = (10.381943959506955, 4.969397370016565)
M = (-1.2945140451951676, -2.6601064398740246)
P = (12.504936323998251, -2.7927934626547297)
đa giác1, c, a, b = Polygon(N, M, P)
α = Angle(P, M, N)
C' = Rotate(P, -(α), M)
β = Angle(C', M, P)
d = Ray(M, C')
e = Circle(P, b)
Q = Intersect(e, d, 1.0)
đa giác2, c_1, b_1, d_1 = Polygon(M, Q, P)