Muslims and Persians stressed perfect symmetry in their architectural designs so that each side of a building would look exactly the same as the others.
It is a language refers to a sense of harmonious and beautiful proportion and balance. In mathematics, "symmetry" has a more precise definition, and is usually used to refer to an object that is invariant under some transformations; including translation, reflection, rotation or scaling. Symmetry is a predictable and perfect regularity within pattern.
Therefore, Symmetry is the correct answer.
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