S = (1, 0)
B = (3, 0)
k = Circle(S, B)
A = (5, 0)
f, g = Tangent(A, k)
h = OrthogonalLine(S, f)
i = OrthogonalLine(S, g)
T_2 = Intersect(k, g, 1)
T_1 = Intersect(k, f, 1)
j = Line(S, A)