## Square root of 9

The Value of Square root √9 is = 3

## Also Find Other Root Value From Here

## Square Root calculator

Type a value in the box field to convert the value to square root of the input value:

The SQRT is:

The Square Root Calculator is used to find the square root value of any number.

## How to Use this Square Root Calculator?

If you want to find the **square root** value of any number then this **calculator** is really going to help you, the procedure to use this calculator is very simple ,

That is put the input value for that number you want to find the square root value (power of the number is 0.5 or 1/2)

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## What is Square Root?

The square root of a number is defined as the value, which gives the number when it is multiplied by itself. The radical symbol √ is used to indicate the square root. For example, √16 = 4. The radical symbol is also called a root symbol or surds. If a number is a perfect square, we can easily find the square root of the number. If the given number is not a perfect square number, the square root can be found using the long division method.

## Standard Form of square root :

The standard form to represent the square root is given below:

The square root of a function is defined as: f(x) = √x

In other words, it is defined by √(x.x) = √(x)2 = x

## What is a perfect square?

A simple way to know if a number is a perfect square or not:

- If a number ends with 2, 3, 7, 8 at the unit place then it is not a perfect square
- If a number is a perfect square, then it ends with 1, 4, 5, 6, 9 in the unit place but vice versa is not possible. For example, 25 is a perfect square, whereas 35 is not

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## What is the Square root of 4?

In mathematics, squaring a number is not difficult as the calculation is easy. To find the square root of a number is complicated as we need to find the original number that was squared. Let us consider an example: +5 and -5 are square roots of 25 because 52 = (-5)2 = 25. A non-negative real number has a unique non-negative square root. It is called principal square root denoted by √a. √ is called the radical symbol or radix and in this example, the principal square root of 25 is 5 which is denoted by √25 = 5, because 52 = 5 • 5 = 25 and 5 is non-negative. The number underneath the radical symbol is called the radicand. Here the radicand is 25.

Considering the above example, +2 and -2 are square roots of 4 because 22 = (-2)2 = 4. A non-negative real number has a unique non-negative square root. It is called principal square root denoted by √a. √ is called the radical symbol or radix and in this example, the principal square root of 4 is 2 which is denoted by √4 = 2 because 22 = 2 • 2 = 4 and 2 are non-negative. The number underneath the radical symbol is called the radicand. Here the radicand is 4. Here is a video for the shortcut method to find out the square root of a number.

## Square root of 40 ?

40 is the multiple of 4 and 10. As we already know, the root of 4 is equal to 2 but what about number 10. Since 10 is not a perfect square, thus we have to find the root of 10 using the long division method.

Hence, we can write,

Value of root 40 = √40 = √4 x √10 = 2 √10

Since, √10 = 3.162 [By long division method]

Hence, √40 = 2 x 3.162 = 6.324

## Square root of 400 ?

When number 4 is multiplied by 100 it results in 400, such as;

4 x 100 = 400

As you can see, both 4 and 100 are the perfect squares. Hence, it is easy to find the root value of 400. Therefore,

√400 = √4 x √100 = 2 x 10 = 20

Hence, 20 is the answer.

Similarly you can also find other square root value by this method.

**Click Here** to read more about Square Root

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## Square Root From 1 to 50

Here is the list of the square root of numbers from 1 to 50. Student can use this table to do calculations.

**The sqrt of 1 = 1**

**The sqrt of 2 = 1.414**

**The sqrt of 3 = 1.732**

**The sqrt of 4 = 2**

**The sqrt of 5 = 2.236**

**The sqrt of 6 = 2.449**

**The sqrt of 7 = 2.645**

**The sqrt of 8 = 2.828**

**The sqrt of 9 = 3**

**The sqrt of 10 = 3.162**

**The sqrt of 11 = 3.316**

**The sqrt of 12 = 3.464**

**The sqrt of 13 = 3.605**

**The sqrt of 14 = 3.741**

**The sqrt of 15 = 3.872**

**The sqrt of 16 = 4**

**The sqrt of 17 = 4.123**

**The sqrt of 18 = 4.242**

**The sqrt of 19 = 4.358**

**The sqrt of 20 = 4.472**

**The sqrt of 21 = 4.582**

**The sqrt of 22 = 4.690**

**The sqrt of 23 = 4.795**

**The sqrt of 24 = 4.898**

**The sqrt of 25 = 5**

**The sqrt of 26 = 5.099**

**The sqrt of 27 = 5.196**

**The sqrt of 28 = 5.291**

**The sqrt of 29 = 5.385**

**The sqrt of 30 = 5.477**

**The sqrt of 31 = 5.567**

**The sqrt of 32 = 5.656**

**The sqrt of 33 = 5.744**

**The sqrt of 34 = 5.830**

**The sqrt of 35 = 5.916**

**The sqrt of 36 = 6**

**The sqrt of 37 = 6.082**

**The sqrt of 38 = 6.164**

**The sqrt of 39 = 6.244**

**The sqrt of 40 = 6.324**

**The sqrt of 41 = 6.403**

**The sqrt of 42 = 6.480**

**The sqrt of 43 = 6.557**

**The sqrt of 44 = 6.633**

**The sqrt of 45 = 6.708**

**The sqrt of 46 = 6.782**

**The sqrt of 47 = 6.855**

**The sqrt of 48 = 6.928**

**The sqrt of 49 = 7**

**The sqrt of 50 = 7.071**

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