GeoGebra

User:Colin

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These are my contributions so far:

芳賀第一定理 (Haga's First Theorem)

Paper-folding manipulative to investigate [Haga's First Theorem] with free-form folding simulation.

Paper-folding manipulative to investigate [Haga's First Theorem] with the point constrained to the edge of the square.

Paper-folding manipulative to investigate [Haga's First Theorem] improved version to allow for exploration.

For the theory behind these, please [refer to my blog post].

Crease patterns for "Silent folds" Suggested form for the crease pattern [full crease pattern (with angles marked)].