Escher's Pegasus Tessellation Investigation

This worksheet is intended to help you discover and generalize a rule for finding the underlying polygonal tessellations that M.C. Escher used to create the non-polygonal Pegasus tessellation. It can also be used to explore the relationship between the symmetries of the tessellation and the transformations used to create the pegasus tile.
Investigation Questions:
1) What types of symmetry can be identified in Escher's Dog Tessellation? (Explain your answer)
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2) What is the underlying polygonal grid? (Be as descriptive as possible in your explanation)
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3) What transformations were used to create the dog tile? (Be as descriptive as possible in your explanation)
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Information: Escher's Pegasus Tessellation Investigation