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Symmetry (from Greek συμμετρία symmetria “agreement in dimensions, due proportion, arrangement”)[1] in everyday language refers to a sense of harmonious and beautiful proportion and balance.[2][3][a] In mathematics, “symmetry” has a more precise definition, that an object is invariant to any of various transformations; including reflection, rotation or scaling. Although these two meanings of “symmetry” can sometimes be told apart, they are related, so they are here discussed together…. information sourced from Wikipedia.org
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