$ \text{Gegeben:}\\\text{Umfang} \qquad U \qquad [m] \\ \\ \text{Gesucht:} \\\text{Seite} \qquad a \qquad [m] \\ \\ a = \frac{U}{4}\\ \textbf{Gegeben:} \\ U=1\frac{1}{6}m \qquad \\ \\ \textbf{Rechnung:} \\ a = \frac{U}{4} \\ U=1\frac{1}{6}m\\ a = \frac{1\frac{1}{6}m}{4}\\\\a=\frac{7}{24}m \\\\\\ \small \begin{array}{|l|} \hline U=\\ \hline 1\frac{1}{6} m \\ \hline 11\frac{2}{3} dm \\ \hline 116\frac{2}{3} cm \\ \hline 1166\frac{2}{3} mm \\ \hline 1166666\frac{2}{3} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline a=\\ \hline \frac{7}{24} m \\ \hline 2\frac{11}{12} dm \\ \hline 29\frac{1}{6} cm \\ \hline 291\frac{2}{3} mm \\ \hline 291666\frac{2}{3} \mu m \\ \hline \end{array}$