Hinh7

O = (-0.14, 1.34)
Control1 = (2.0662857142857143, -1.3071428571428576)
c = Circle(O, Control1)
A = Point(c)
a = Segment(O, A)
b = OrthogonalLine(A, a)
d = Circle(A, O)
T = Intersect(d, b, 1.0)
e = Ray(O, T)
f = Ray(A, T)
α = Angle(O, A, T)
β = Angle(T, O, A)
g = Line(A, T)
h = Segment(A, T)
B = Intersect(c, e, 1.0)