+0

# what is square root of 45 and how to do it?

0
274
2

what is square root of 45 and how to do it?

Guest Aug 25, 2017
Sort:

#1
+523
+1

A square root of something means that the square of the result would become the original number.

No rational number is squared to become 45. Probably the closest is 7, because 7^2=49.

The square root of 45 would be represented as √45. It's not a perfect square.

Of course, you could  plug √45 into a calculator.

But the decimal places would go on forever.

Here's what I got when I put √45 into this website's calculator:

6.7082039324993691

It looks like the decimal places end, but the decimal places go on forever. The calculator rounded it.

These numbers are called irrational numbers.

They can't be expressed as a fraction.

Gh0sty15  Aug 25, 2017
#2
+83952
+1

Thanks, Gh0sty!!

If we just wanted to simplify  √45,  we  have

√45  =  √ [9 * 5 ] = √9 *√5  =   3√5

CPhill  Aug 25, 2017

### 6 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details