L’aire d’une surface (9e-GM.1)
Dans cette vidéo, tu trouveras la définition de l’aire d’une surface, quelques exemples, ainsi que l’explication de la formule pour l’aire d’un rectangle.
Thèmes
Nombres :
• Les nombres naturels
• Fractions
• Puissances et racines
Géométrie :
• Périmètre et aire de polygones
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