This math topic involves calculating the distance between two points on the complex plane, under the broader theme of complex numbers. Each question provides a scenario where students must determine how far apart two points, labeled A and B, are located on the complex plane. Several potential answers accompany each problem, requiring learners to select the correct distance among them. This set of problems helps to deepen understanding of the geometric representation of complex numbers and the computation involved in finding distances in a two-dimensional space.