From Chords of Circles to Triangular Numbers to Volumes of Spheres.

The article discusses topic related to the mathematical problem chords of circle to triangular numbers to volumes of spheres. It denotes that this kind of delving deeper is different from its other kind since arose from a telephone conversation inspired by mathematician Don Crossfield. It also presents the conversation between Hypatia and Ptolemy concerning the problem raised by Crossfield which was published in "The Oregon Mathematics Teacher." According to the article, the conversation is composing of a casual talk and confusing reference that occurred in a casual conversations.