Investigating Escher's "Pegasus" tiling (tesselation)

We start our work with the following figure created by the Dutch artist Maurits Cornelis [i]Escher[/i] (1898-1972).[br]
Describe the figure in words as if you were talking to someone who is blind.
Click on the box labelled "Translation". [br]Describe what appears.[br]Describe what happens when you move one of the two points with your mouse?
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Information: Investigating Escher's "Pegasus" tiling (tesselation)