Question

Find the square root of

441

Answer 1

21

Explanation:

√441

Take factors of 441

-> 1,3,7,9,21,49,63,147,441

If you know all of them like this and it’s an odd number, find the middle value that doesn’t have a pair and it’s 21.

If you don’t just take a different value that has a square root. Let’s do 9.

Separate the root into √9*49

Woah, both of those are squares!!

Take the square root of both of those numbers

√9*√49

3*7=21, voila.

Answer 2

It is very easy, we just have to take the square root as it tells us in the problem:

`\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \red{ √(441 )} = \orange{21}`

You may ask ¿why 21?

`\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \red{21 * 21} = \orange{441}`

`\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf So , \: the \: result \: is \\ \sf \: \: \: \: \longmapsto \orange{21}`