0°

m°

n°

O = (237.62442765836542, 279.3523000757011)
B = (285.07000769079394, 251.93929827918686)
c = Circle(O, B)
C = (315.6460481561368, 279.3523000757011)
a = Line(O, C)
D = Intersect(c, a, 1.0)
E = Intersect(c, a, 2.0)
d = Ray(D, E)
X = Point(d)
e = Segment(D, X)
f = Semicircle(D, E)
Y = (315.6460481561368, 327.85222633107253)
b = Segment(O, Y)
Z = (291.3960850284511, 346.479009603063)
g = Segment(O, Z)
α = Angle(X, O, Y)
β = Angle(X, O, Z)