define Perfect squares

Answer 1

Perfect squares are numbers that can be expressed as the square of an integer. In other words, they are numbers that can be written in the form of n^2, where n is an integer. For example, 4, 9, 16, and 25 are perfect squares because they can all be expressed as the square of an integer (2^2, 3^2, 4^2, and 5^2 respectively).