M = (4.5, 0.85)
S = (1.42, 0.17)
k = Circle(S, M)
T = Point(k)
A = (-1.36, 3.53)
B = (4.7, 4.93)
t = Tangent(T, k)
a = Line(A, B)
s = Line(S, T)
o_2, o_1 = AngularBisector(a, t)
O_2 = Intersect(s, o_2)
O_1 = Intersect(s, o_1)
d = Circle(O_2, T)
c = Circle(O_1, T)