In James Tanton's *Intersection Math* problem, two rows of dots are
drawn and then all dots in the top row are connected to all dots in the
bottom row. He then defines "multiplication" (denoted in our work as the
star operation) to be the number of intersections produced by all the
lines. We solved this problem and then extended it to tripartite graphs.

This work placed into the public domain by the Riverbend Community Math Center.

hello@riverbendmath.org

http://riverbendmath.org

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This work placed into the public domain by the Riverbend Community Math Center.