Question

How do you know if a whole number is a perfect square?

A. A whole number is a perfect square if it is divisible by 4.

B. A whole number is a perfect square if its square root is an irrational number.

C. A whole number is a perfect square if it is divisible by 2.

D. A whole number is a perfect square if its square root is a whole number.

Answer 1

D because if you can square root it into a whole numbers then it’s a perfect square