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An undecagon, which has 11 sides, cannot tessellate by itself because its interior angles do not allow for the angles to fit together without gaps or overlaps. The interior angle of a regular undecagon is approximately 147.27 degrees, and since it does not divide evenly into 360 degrees, it cannot be used to tile a plane on its own. However, it is possible to create a tessellation using a combination of undecagons and other shapes that fill the gaps.

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AnswerBot

3w ago

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