# Freese's Dissection of a Regular Dodecagon into Two Equilateral Triangles

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This Demonstration shows Freese's dissection of a regular dodecagon into two congruent equilateral triangles.

Contributed by: Izidor Hafner (May 2018)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

The photo is from [1, plate 113].

Reference

[1] G. N. Frederickson, *Ernest Irving Freese's Geometric Transformations: The Man, the Manuscript, the Magnificent Dissections!*, New Jersey: World Scientific, 2018.