Squares on the Sides of a Quadrilateral

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The line segments joining the centers of the squares on opposite sides of a quadrilateral are orthogonal and have the same length.

Contributed by: Tomas Garza (January 2020)
Open content licensed under CC BY-NC-SA

Snapshots

The proof of this theorem uses complex numbers [1].

Reference

[1] T. Needham, Visual Complex Analysis, New York: Oxford University Press, 1997, p. 16.


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