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Published online by Cambridge University Press: 01 August 2016
In this article several combinatorial problems are posed for the partitioning of certain plane figures. The solutions are obtained by means of Euler’s formula for plane graphs or networks, V - E + R = 1, where V is the number of vertices, E is the number of edges, and R is the number of bounded regions of the figure. Being unified by the common thread of Euler’s formula, the sequence of problems forms an interesting unit on solving related problems.