A = (-0.9342797007306691, 0.6101614440450787)
B = (11.693553448332603, 0.5390187220785254)
a = Segment(A, B)
C_1 = Midpoint(A, B)
c = Circle(C_1, B)
C = Point(c)
đa giác1, b, a_1, c_1 = Polygon(A, C, B)