Dissection of a Square and an Isosceles Right Triangle into a Square

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This Demonstration shows Dudeney's dissection of a square into a square, with an isosceles right triangle appearing in an intermediate stage.

Contributed by: Izidor Hafner (December 2015)
Open content licensed under CC BY-NC-SA




[1] D. Wells, The Penguin Book of Curious and Interesting Puzzles, Penguin Books, New York, 1993 p. 269.

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