chaanah
18.04.2020 •
Mathematics
Un moulage de béton devant soutenir un pont d'autoroute est formé de six cylindres de 2,1 m de diamètre et de 10,5 m de hauteur surmontés d'une traverse de forme prismatique dont les dimensions sont de 31,5 m de longueur par 3,15 m de largeur et 2,1 m de hauteur. Pour peindre cette structure en blanc, combien de mètres carrés devra-t-on peindre? Utilise l'approximation π ≈ 3,1416 ou la valeur de la calculatrice et arrondis ta réponse au dixième près. Its in french
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Ответ:
NANI!?