How to know if a number is a perfect square?

A perfect square is a number that is expressed as a product of two equal integers.

Answer: A number is a perfect square if it is obtained by squaring a whole number or an integer.

Let's understand this with the help of an example.

Explanation:

If N is the perfect square of a whole number X, then it can be written as N = X²

Example: 9 is the square of 3 and is represented as 3² or 3 × 3 = 9

Here, 9 is known as a perfect square.

Thus, a number is a perfect square if it is obtained by squaring a whole number or an integer