Question

is 400 is a perfect square if yes then explain to me​

Answer 1

$yes$

PLEASE MARK ME AS A BRAINLIST

Answer 2

ANSWER:-

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 400 is 20. Therefore, the square root of 400 is an integer, and as a consequence 400 is a perfect square.