###### Asked in Math and ArithmeticNumbers

Math and Arithmetic

Numbers

# Why is one a perfect square?

## Answer

###### Wiki User

###### February 17, 2011 4:46AM

Because anything times itself equals a perfect square and is considered that taking the square root of a perfect square (non negative numbers) which end result does not involve fractions but whole numbers is a perfect square.

1 x 1 = 1

sq.root(1) = 1

2 x 2 = 4 (Perfect square)

sq.root(4) = 2