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Penrose Triangle


	This example of the "impossible figure" of the Penrose triangle is a perspective view of a real three-dimensional object. Rotate it by dragging.


	Contributed by: Ralf Schaper

Illusion (Wolfram MathWorld)

Penrose Triangle (Wolfram MathWorld)

"Penrose Triangle" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/PenroseTriangle/

Contributed by: Ralf Schaper

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