# Question: What Is The Square Root Of 400?

## How do you find the square root of 400?

What Is the Square Root of 400?

1. The square root of a number is the number that when multiplied to itself gives the original number as the product.
2. 400 = a × a = 202
3. Then a = √ 400 = √(20 × 20)
4. 20 × 20 = 400 or -20 × -20 = 400.
5. The 2nd root of 400 is +20 or – 20.
6. This shows that 400 is a perfect square.

## What is the square of 400?

List of Perfect Squares

NUMBER SQUARE SQUARE ROOT
20 400 4.472
21 441 4.583
22 484 4.690
23 529 4.796

## Is 400 rational or irrational?

400 is not an irrational number because it can be expressed as the quotient of two integers: 400 ÷ 1.

## IS 400 is a perfect square?

400 is a perfect square. Because 20 * 20 = 400.

## What is the square of 324?

The square root of 324 is a number which, when multiplied by itself, results in 324. The number 324 is special because it is a perfect square root. Square root of 324.

1. What Is the Square Root of 324?
4. FAQs on Square Root of 324
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## What is the root square of 169?

The square root of 169 is 13.

## IS 169 a perfect square?

The square root of 169 is 13. Since 13 is a whole number, 169 is a perfect square.

## What is the square of 193?

First, we find the closest square to 193, which is 142=196.

## What is the short trick to find square root?

Shortcut to find the square root of any 6 digit number

1. We find that nearest square to the first group (1267)is 1225 and√1225=35.
2. ten’s place digit of original number>Multiplication result.
3. So we need to select the greater number (6) as the unit’s place digit of the square root.
4. Unit’s place digit =6.
5. Ans:√126736=356.

## Is 1000 rational or irrational?

1000 is a rational number because it can be expressed as the quotient of two integers: 1000 ÷ 1.

## Is 8 rational or irrational?

8 is a rational number because it can be expressed as the quotient of two integers: 8 ÷ 1.

## Is the square root of rational or irrational?

But √4 = 2 ( rational ), and √9 = 3 ( rational ) so not all roots are irrational. Famous Irrational Numbers.

√3 1.7320508075688772935274463415059 (etc)
√99 9.9498743710661995473447982100121 (etc) 