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            <video:title>Trouver la hauteur d’un parallélogramme</video:title>
            <video:description>Connaissant l&#39;aire d&#39;un parallélogramme et la longueur de sa base, déterminer la valeur de la hauteur. Pour cela, on se rappelle que l&#39;aire d&#39;un parallélogramme est égale au produit de la longueur d&#39;un côté par la hauteur relative à ce côté. Si l&#39;aire est égale à 24 unités d&#39;aire et la base à 6 unités, alors la hauteur est  égale 4 unités. Facile !</video:description>
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            <video:category>Formules de calcul de l’aire d’un carré, rectangle, triangle, trapèze, cercle</video:category>
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            <Attribute name="description">On donne l&#39;aire d&#39;un parallélogramme et l&#39;un de ses côtés, il faut calculer la hauteur correspondante, ou bien son aire et l&#39;une de ses hauteurs et il faut calculer la base correspondante.</Attribute>
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