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Last updated 25/7/2025

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The material from this article subsequently appeared in 'Pliage et Decoupage du Papier' by C Savineau, which was published in 1897.

Information from Michel Grand.

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Analysis

How to Construct the Equilateral Triangle by Folding Paper (1)

(and how to demonstrate by folding that all three angles are equal)

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How to Construct the Equilateral Triangle by Folding Paper (2)

and

How to Construct the Hexagon by Folding Paper

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