$
\text{Gegeben:}\\\text{Höhe} \qquad h \qquad [m] \\
\text{Fläche} \qquad A \qquad [m^{2}] \\
\\ \text{Gesucht:} \\\text{Grundlinie} \qquad g \qquad [m] \\
\\ g = \frac{A\cdot 2}{ h}\\ \textbf{Gegeben:} \\ h=120m \qquad A=80m^{2} \qquad \\ \\ \textbf{Rechnung:} \\
g = \frac{A\cdot 2}{ h} \\
h=120m\\
A=80m^{2}\\
g = \frac{80m^{2}\cdot 2}{ 120m}\\\\g=1\frac{1}{3}m
\\\\\\ \small \begin{array}{|l|} \hline h=\\ \hline 120 m \\ \hline 1,2\cdot 10^{3} dm \\ \hline 1,2\cdot 10^{4} cm \\ \hline 1,2\cdot 10^{5} mm \\ \hline 1,2\cdot 10^{8} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline A=\\ \hline 80 m^2 \\ \hline 8\cdot 10^{3} dm^2 \\ \hline 8\cdot 10^{5} cm^2 \\ \hline 8\cdot 10^{7} mm^2 \\ \hline \frac{4}{5} a \\ \hline \frac{1}{125} ha \\ \hline \end{array} \small \begin{array}{|l|} \hline g=\\ \hline 1\frac{1}{3} m \\ \hline 13\frac{1}{3} dm \\ \hline 133\frac{1}{3} cm \\ \hline 1333\frac{1}{3} mm \\ \hline 1333333\frac{1}{3} \mu m \\ \hline \end{array}$