Lab / Tessellations
Infinitely many “proofs” of Pythagoras
Slide one square tiling over another and visit the medieval, Perigal, and Ferrarese dissection phases.
- Technology
- React · TypeScript · SVG
- Maturity
- Beta
- Last tested
- 2026-07-29
Objective Explore a continuously moving family of tessellation proofs of Pythagoras’ theorem.
Shape
30.0°Right triangle and its squares
Dissection
Two tilings of the plane
Perigal · symmetric five-piece dissection
Drag the small anchor to move continuously between dissections.
GeometryTessellationsPythagoras
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