B = (285.07000769079394, 251.93929827918686)
C = (315.6460481561368, 279.3523000757011)
O = (273.8236479794035, 270.5660815511773)
X = (377.5010265687844, 270.2146328101964)
a = Segment(O, X)
Y = (317.40329186104157, 359.8340617603392)
b = Segment(O, Y)
c = AngularBisector(X, O, Y)
Z = Point(c)
d = Segment(O, Z)
α = Angle(X, O, Z)
β = Angle(Z, O, Y)