Are A type of balance in which both sides of a composition
different.
visually balanced yet

Symmetrical balance is also referred to as symmetry or formal balance. And asymmetrical balance is also called asymmetry or informal balance. Of these two types, symmetrical balance is the most stable visually. Symmetrical balance is when the weight is equally distributed on both sides of the central axis.

because of the importance of consistency in data collection. but we have to evaluate the resource or information, and not just accept what is posted online since information available on the internet is not regulated for quality or accuracy.