Huzita, Humiaki Drawing the regular heptagon and the regular nonagon by origami (paper folding). (English) Zbl 0882.51011 Symmetry Cult. Sci. 5, No. 1, 69-83 (1994). Summary: The regular heptagon and the regular nonagon are good examples for showing paper folding ability, since neither can be made by Euclidean methods (using ruler and compass). For the convenience, starting with a square diagram, the concentric polygons are demonstrated here. As you see, this does not disturb the generality. Here the simplest method is described first, and then the explanation follows. Cited in 1 Document MSC: 51M20 Polyhedra and polytopes; regular figures, division of spaces Keywords:origami; regular heptagon; regular nonagon; paper folding PDFBibTeX XMLCite \textit{H. Huzita}, Symmetry Cult. Sci. 5, No. 1, 69--83 (1994; Zbl 0882.51011)