Omtrek, oppervlakte en volume: Verskil tussen weergawes
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Lyn 73:
:<math>\text{Gedeeltelike volume} = \frac{a}{b} L \left[ \left(h-b\right) \sqrt{b^2-\left(h-b\right)^2} + b^2 \cdot sin^{-1}\left(\frac{h-b}{b}\right) + b^2 \frac{\pi}{2} \right]</math>
:<math>a = \frac{W}{2}</math> {{spaces|10}} en {{spaces|10}} <math>b = \frac{H}{2}</math>
===Keël===
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