Respuesta :

[tex]\begin{gathered} \text{area}=L^2=49,\text{ this implies that} \\ L=\sqrt[]{49} \\ L=7 \\ \text{Now, the perimeter is four times 7, that is,} \\ \text{Perimeter}=4\cdot7=28\text{ cm} \end{gathered}[/tex]

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