WOLFRAM|DEMONSTRATIONS PROJECT

Three Hinged Dissections of Squares

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Perigal 1
Abul-Wafa
Perigal 2
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The Demonstration shows Perigal's (1873) hingable dissection of two squares to one square, a generalization of Abul-Wafa's hingable dissection of three squares to one square, and another hingable dissection of three squares to one based on Perigal's dissection.