# What is the square root of 169?

##### 2 Answers

Sep 13, 2015

13

#### Explanation:

The answer is 13

Aug 31, 2016

This is the principal root.

The root can be

#### Explanation:

We are looking for a number which, multiplied by itself makes 169.

It is a huge advantage in your Maths to know all the squares up to

Bu estimating....

So,

If you find it by estimating, the number 9 at the end means that the square root must end in a 3 or a 7.

The only options are

Multiplying gives