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arXiv · 2505.05673

Unified constructions of the regular Heptagon, Triskaidecagon and Heptadecagon

Helmut Ruhland
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Abstract

Constructions of regular heptagon and triskaidecagon by trisection of an angle are well known. An elegant construction of the heptagon by S. Adlaj shows a 3-fold symmetry related to a Galois group. Based on the latter construction, in this article one more for the heptagon, two more for the triskaidecagon and three for heptadecagon are presented, all using angle trisection.

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Helmut Ruhland. 2025-05-08. Unified constructions of the regular Heptagon, Triskaidecagon and Heptadecagon. https://doi.org/10.32603/2071-2340-2025-1-27-32

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