Respuesta :

[tex]\begin{gathered} \text{Perimeter}=68\text{ units} \\ ER+RO+EO=68 \\ x+2x+3x=68 \\ 6x=68 \\ x=11.34 \\ \text{The length of EO is,} \\ EO=3x=3\times11.34 \\ EO=34 \end{gathered}[/tex]