C:\Users\dominik\Downloads\bbk_bod_vne_a_bod_na_kružnici_kolinearita_se_stredem

A_{1} = (18.43560174078833, 4.396282886135086)
B = (28.196526200358154, 4.7466724958859245)
k = Circle(A_{1}, B)
f = Line(A_{1}, B)
n = 1 (slider from 1 to 3, step 1)
A = Point(f)
S = Midpoint(B, A)
k_1 = Circle(S, B)