Statement (A): The square of any number is the product of a number by itself.

Statement (B): The principle square root of any number is always positive

Statement (A): The square of $5=5\times 5=25$

                          The square of $9=9\times 9=81$

Statement –(B): The principle square root of 225 is 15

                          The principle square root of 361 is 19