What is SQUARE ROOT ?

What is the formula of SQUARE ROOT ?

What is the SQUARE ROOT OF A NUMBER ?

PLEASE TELL ME FAST BRIEFLY.

I REALLY DON'T UNDERSTAND ANYTHING ABOUT SQUARE ROOT.

I HAVE A QUESTION GIVEN BELOW WHICH I DONOT UNDERSTAND.

Question---- The area of a square seat is 961 sq.cm. How much is its side ???

1.A square root of a number is a value which when multiplied by itself to give the original number. It is represented by a √ symbol. It is also called as radical symbol.
 

2.To calculate a square root, first we need to find the factors of the number. Now group the common factors together. If the factors have any perfect square then group them separately. The square root of the square of a number is the number itself. For example take a number 25. The factors of 25 is given as, 25 = 5 * 5. Now since it is a perfect square, its square root is 5. 

3.

Given

Area of square seat=961sq.cm

we know that

Area of square=