A_{1} = (1.52, 0.04)
B = (5.94, 3.78)
p_2 = Line(A_{1}, B)
C = (10, -0.52)
p_1 = Line(A_{1}, C)
h = AngularBisector(B, A_{1}, C)
A = Point(h)
i = OrthogonalLine(A, h)
f, g = AngularBisector(p_2, i)
S_1 = Intersect(h, f)
S_2 = Intersect(h, g)
k_1 = Circle(S_1, A)
k_2 = Circle(S_2, A)
a = 0 (slider from 0 to 5, step 1)