Question

what r non perfect square numbers?

Answer 1

Any number whose square root is a whole number is called a perfect square. For instance the square root of 25 is 5. Hence 25 is a perfect square. Similarly 100 is a perfect square because 10 is the square root of 100. In nutshell, 0,1,4,9,16,25,36,49,64,81,100,121.........and so on...... are all perfect squares.

And any number whose square root is not a whole number is called a non perfect square. For instance, 10 is a non perfect square because its square root is 3.16 and so on.

In summary, it will be safe to say that irrational square roots and non perfect squares are talking about the same thing.

It will also be safe to say that any numbers other than
0,1,4,9,16,25,36,49,64,81,100,121.........and so on, are non perfect square numbers.