Given Data:
The total area of the square is: A=169 square meters
Let 'a' be the length of a side of the square. The expression to calculate the area of a square is,
![A=a^2](https://img.qammunity.org/2023/formulas/mathematics/high-school/einvvahn0btfwzepa3lr25hf23bztexm1w.png)
Substitute values in the above expression.
![\begin{gathered} 169=a^2 \\ a^2=169 \\ a=\sqrt[]{169} \\ a=13\text{ meter} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/tg9quqgq6875x3yor3hepbeo1fnvgcgpvy.png)
Thus, the length of one side of the square is 13 meter.