Respuesta :

[tex]\text{surface area=2(lh+}wh+lw\text{)}[/tex][tex]\begin{gathered} \text{area}=2(13\times4+9\times4+13\times9) \\ \text{area}=2(52+36+117) \\ \text{area}=2(205) \\ \text{area}=410m^3 \end{gathered}[/tex]

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