Trisection of an Angle

Year: 2022 Authors: Jo Niemeyer; Hans Walser

Core claim

Two transparent squares can be arranged to trisect a given angle, with a congruence proof showing three equal angles at the vertex.

Topics

classical construction problems, angle trisection, geometric proof, constructive artwork

Domains

Euclidean geometry, classical construction, congruence, geometric art, artist’s artwork, transparent materials

Methods

square alignment, midline folding, triangle congruence proof

Media

transparent squares, rectangles, artwork figure

Source status

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