# Freese's Dissection of a Regular Dodecagon into an Isosceles Right Triangle

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This Demonstration shows Freese's dissection of a regular dodecagon into an isosceles right triangle.

Contributed by: Izidor Hafner (April 2018)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

The photo is from [1, p. 149].

Reference

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