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$ A = a^{2} $
$ a = \sqrt{A} $
$ U = 4\cdot a $
$ a = \frac{U}{4} $
$ d = a\cdot \sqrt{2} $
$ a = \frac{d}{\sqrt{2}} $
Geometrie-Viereck-Quadrat
$A = a^{2}$
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$a = \sqrt{A}$
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$U = 4\cdot a$
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$a = \frac{U}{4}$
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$d = a\cdot \sqrt{2}$
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$a = \frac{d}{\sqrt{2}}$
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Beispiel Nr: 07
$\begin{array}{l}
\text{Gegeben:}\\\text{Seite} \qquad a \qquad [m] \\
\\ \text{Gesucht:} \\\text{Umfang} \qquad U \qquad [m] \\
\\ U = 4\cdot a\\ \textbf{Gegeben:} \\ a=\frac{1}{100}m \qquad \\ \\ \textbf{Rechnung:} \\
U = 4\cdot a \\
a=\frac{1}{100}m\\
U = 4\cdot \frac{1}{100}m\\\\U=\frac{1}{25}m
\\\\\\ \small \begin{array}{|l|} \hline a=\\ \hline \frac{1}{100} m \\ \hline \frac{1}{10} dm \\ \hline 1 cm \\ \hline 10 mm \\ \hline 10^{4} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline U=\\ \hline \frac{1}{25} m \\ \hline \frac{2}{5} dm \\ \hline 4 cm \\ \hline 40 mm \\ \hline 4\cdot 10^{4} \mu m \\ \hline \end{array} \end{array}$