Anxiety Disorder Statistics. Anxiety Disorders affect 18.1 percent of adults in the United States (approximately 40 million adults between the ages of 18 to 54).
Perfect square. Perfect square is an element of algebraic structure which is equal to the square of another element. Square number, a perfect square integer.
A square unit is a unit when squared equals a perfect square number. 5 is a square number, five times five is 25. Divid or square root 25 and you get 5.now technicaly every number is a square number but it is generally considered only whole numbers. square unit is a unit when squared equals a perfect square number. 5 is a square number, five times five is 25. Divid or square root 25 and you get 5.