Mathematics, 14.04.2021 05:40 musa79

7. Un cercle a un rayon de 4,2dm. Un angle au centre intercepte un arc de 2,2dm sur ce cercle. Quelle est l'aire du secteur qui correspond à cet angle au centre?

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7. Un cercle a un rayon de 4,2dm. Un angle au centre intercepte un arc de 2,2dm sur ce cercle. Quel...