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From hexagon to pentagon. (English)
SYMmetryplus, No. 38, 14 (2009).
From the introduction: We all know to step-off the radius around a circle to make a regular hexagon, but is there a quick way of then going on to construct a regular pentagon? This article, inspired by a lovely paper by Michel Bataille in the on-line journal {\it Forum Geometricorum}, shows how you can do just that in five easy steps.
Classification: G40
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