The square root of 144 is?

square root of 144 is 12

how do i know:

$${\mathtt{12}}{\mathtt{\,\times\,}}{\mathtt{12}} = {\mathtt{144}}$$

$${\frac{{\mathtt{144}}}{{\mathtt{12}}}} = {\mathtt{12}}$$

overall, the square root of 144 is:

12