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$ A = \frac{g \cdot h}{2} $
$ g = \frac{A\cdot 2}{ h} $
$ h = \frac{A\cdot 2}{ g} $
$ A =\frac{1}{2}\cdot a\cdot b\cdot sin(\gamma) $
$ U = a+b+c $
Geometrie-Dreieck-Allgemeines Dreieck
$A = \frac{g \cdot h}{2}$
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$g = \frac{A\cdot 2}{ h}$
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$h = \frac{A\cdot 2}{ g}$
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$A =\frac{1}{2}\cdot a\cdot b\cdot sin(\gamma)$
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$U = a+b+c$
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Beispiel Nr: 12
$\begin{array}{l}
\text{Gegeben:}\\\text{Grundlinie} \qquad g \qquad [m] \\
\text{Höhe} \qquad h \qquad [m] \\
\\ \text{Gesucht:} \\\text{Fläche} \qquad A \qquad [m^{2}] \\
\\ A = \frac{g \cdot h}{2}\\ \textbf{Gegeben:} \\ g=\frac{3}{5}m \qquad h=1m \qquad \\ \\ \textbf{Rechnung:} \\
A = \frac{g \cdot h}{2} \\
g=\frac{3}{5}m\\
h=1m\\
A = \frac{\frac{3}{5}m \cdot 1m}{2}\\\\A=\frac{3}{10}m^{2}
\\\\\\ \small \begin{array}{|l|} \hline g=\\ \hline \frac{3}{5} m \\ \hline 6 dm \\ \hline 60 cm \\ \hline 600 mm \\ \hline 6\cdot 10^{5} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline h=\\ \hline 1 m \\ \hline 10 dm \\ \hline 100 cm \\ \hline 10^{3} mm \\ \hline 10^{6} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline A=\\ \hline \frac{3}{10} m^2 \\ \hline 30 dm^2 \\ \hline 3\cdot 10^{3} cm^2 \\ \hline 3\cdot 10^{5} mm^2 \\ \hline 0,003 a \\ \hline 3\cdot 10^{-5} ha \\ \hline \end{array} \end{array}$