$\begin{array}{l} \text{Gegeben:}\\\text{Diagonale f} \qquad f \qquad [m] \\ \text{Diagonale e} \qquad e \qquad [m] \\ \\ \text{Gesucht:} \\\text{Fläche} \qquad A \qquad [m^{2}] \\ \\ A = \frac{1}{2}\cdot e\cdot f\\ \textbf{Gegeben:} \\ f=\frac{1}{3}m \qquad e=\frac{3}{4}m \qquad \\ \\ \textbf{Rechnung:} \\ A = \frac{1}{2}\cdot e\cdot f \\ f=\frac{1}{3}m\\ e=\frac{3}{4}m\\ A = \frac{1}{2}\cdot \frac{3}{4}m\cdot \frac{1}{3}m \\\\ A=\frac{1}{8}m^{2} \\\\\\ \small \begin{array}{|l|} \hline f=\\ \hline \frac{1}{3} m \\ \hline 3\frac{1}{3} dm \\ \hline 33\frac{1}{3} cm \\ \hline 333\frac{1}{3} mm \\ \hline 333333\frac{1}{3} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline e=\\ \hline \frac{3}{4} m \\ \hline 7\frac{1}{2} dm \\ \hline 75 cm \\ \hline 750 mm \\ \hline 7,5\cdot 10^{5} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline A=\\ \hline \frac{1}{8} m^2 \\ \hline 12\frac{1}{2} dm^2 \\ \hline 1,25\cdot 10^{3} cm^2 \\ \hline 1,25\cdot 10^{5} mm^2 \\ \hline 0,00125 a \\ \hline 1,25\cdot 10^{-5} ha \\ \hline \end{array} \end{array}$