TY - JOUR T1 - Množiny bodov rovnako vzdialených od dvoch útvarov A1 - Novotný, Peter JA - Obzory matematiky, fyziky a informatiky Y1 - 2013 VL - 42 IS - 1 SP - 1 EP - 10 SN - 1335-4981 N2 - In this paper we deal with the problem of tracing the set of points having the same distance from two objects. The studied objects are classical Eucliedean geometry shapes – point, line and circle. The problem can be considered as a degenerate case of the Problem of Apollonius. The paper is written as a gradual discovery, it can be used in school in a math group. ER -