Geometrie-Stereometrie-Quader


  • $V = a\cdot b\cdot c$
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    $a = \frac{ V}{b\cdot c}$
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    $b = \frac{ V}{a\cdot c}$
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    $c = \frac{ V}{b\cdot a}$
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    $O = 2\cdot (a\cdot b + a\cdot c + b\cdot c)$
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    $a = \frac{O-2\cdot b\cdot c}{2\cdot (b+c)}$
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    $b = \frac{O-2\cdot a\cdot c}{2\cdot (a+c)}$
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    $c = \frac{O-2\cdot b\cdot a}{2\cdot (b+a)}$
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    $d = \sqrt{a^{2} +b^{2} +c^{2} }$
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    $a = \sqrt{d^{2} -b^{2} -c^{2} }$
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    $b = \sqrt{d^{2} -a^{2} -c^{2} }$
    1 2
    $c = \sqrt{d^{2} -b^{2} -a^{2} }$
    1 2

Beispiel Nr: 02
$ \text{Gegeben:}\\\text{Höhe} \qquad c \qquad [m] \\ \text{Breite} \qquad b \qquad [m] \\ \text{Raumdiagonale} \qquad d \qquad [m] \\ \\ \text{Gesucht:} \\\text{Länge} \qquad a \qquad [m] \\ \\ a = \sqrt{d^{2} -b^{2} -c^{2} }\\ \textbf{Gegeben:} \\ c=2m \qquad b=3m \qquad d=5m \qquad \\ \\ \textbf{Rechnung:} \\ a = \sqrt{d^{2} -b^{2} -c^{2} } \\ c=2m\\ b=3m\\ d=5m\\ a = \sqrt{(5m)^{2} -(3m)^{2} -(2m)^{2} }\\\\a=3,46m \\\\\\ \small \begin{array}{|l|} \hline c=\\ \hline 2 m \\ \hline 20 dm \\ \hline 200 cm \\ \hline 2\cdot 10^{3} mm \\ \hline 2\cdot 10^{6} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline b=\\ \hline 3 m \\ \hline 30 dm \\ \hline 300 cm \\ \hline 3\cdot 10^{3} mm \\ \hline 3\cdot 10^{6} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline d=\\ \hline 5 m \\ \hline 50 dm \\ \hline 500 cm \\ \hline 5\cdot 10^{3} mm \\ \hline 5\cdot 10^{6} \mu m \\ \hline \end{array} \small \begin{array}{|l|} \hline a=\\ \hline 3,46 m \\ \hline 34,6 dm \\ \hline 346 cm \\ \hline 3,46\cdot 10^{3} mm \\ \hline 3,46\cdot 10^{6} \mu m \\ \hline \end{array}$