How to show a square root

This is a Radical out if cheese Nips

I started with 4 cheese nips. The four will be the length

Then I added four more. One more row to the width. Now there is two.

Now you add 4 four across the length. Now you have 3 more rows of cheese nips on the width

Last I added 4 more cheese nips to the length. I added one more row to the width. Now I have four on the length and four on the width.