Square-in-a-Circle Illusion


A circle surrounded by a square looks larger than the same circle surrounding a square.

See also

Circle, Square, Square Illusions

This entry contributed by Margherita Barile

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Carraher, R. G. and Thurston, J. B. Optical Illusions and the Visual Arts. New York: Reinhold, 1966.

Referenced on Wolfram|Alpha

Square-in-a-Circle Illusion

Cite this as:

Barile, Margherita. "Square-in-a-Circle Illusion." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein.

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