Vinkel mellem to planer - Formel-samling.dk

Vinkel mellem 2 planer (a,b) med tilhørende normal-vektorer $\vec{n_{a}}$ og $\vec{n_{b}}$

$v = c o s^{- 1} (\frac{\vec{n_{a}} \cdot \vec{n_{b}}}{| \vec{n_{a}} | \cdot | \vec{n_{b}} |})$ eller $v = 180 - c o s^{- 1} (\frac{\vec{n_{a]}} \cdot \vec{n_{b}}}{| \vec{n_{a]}} | \cdot | \vec{n_{b}} |})$

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