Balance
The first six squares are examples of formal balance. Formal balance is when everything is symmetrical to each other. So the principles of designs were used because it was balanced
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3 Ways to Improve Your Balance - SilverSneakers
LaW-BALANCE University of Bergen
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Trial Balance: Definition, How It Works, Purpose, and Requirements
6 Simples Ways to Regain Balance for Orange County Seniors
First balance and then re-balance — Stewart Group
Is your life out of balance? - TileLetter
Balance Principle of Design: Why Balance In Design Is So Important - Kimp