Respuesta :

[tex]\begin{gathered} \text{area}=side^2 \\ 36=side^2 \\ \text{side}=\sqrt[]{36} \\ \text{side=6} \end{gathered}[/tex]

then with the Pythagorean theorem we find the diagonal

[tex]\begin{gathered} c^2=a^2+b^2 \\ c^2=6^2+6^2 \\ c^2=36+36 \\ c^2=72 \\ c=\sqrt[]{72} \\ c=8.485 \end{gathered}[/tex]

answer: the length of the diagonal is 8.5 ft

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