Geometrie-Stereometrie-Würfel

$V = a^{3}$
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$a = ^{3} \sqrt{V}$
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$O = 6\cdot a^{2}$
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$a = \sqrt{\frac{O}{6}}$
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$d = a\cdot \sqrt{3}$
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$a = \frac{d}{\sqrt{3}}$
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