S = (3.2, 1.9000000000000001)
C_1 = (2.38, 3.08)
c = Circle(S, C_1)
A = Point(c)
B = Point(c)
d = Segment(S, A)
e = Segment(S, B)
α = Angle(A, S, B)
l = CircleArc(S, A, B)
C = Point(c)
f = Segment(C, A)
g = Segment(C, B)
β = Angle(A, C, B)