masha8854 masha8854
  • 07-12-2022
  • Mathematics
contestada

9 Un cercle a pour rayon 45 mm.
1. Donner la valeur exacte de sa longueur.
2. Avec la touche de la calculatrice, donner
une valeur approchée par excès au centimètre. Vous pouvez svp m’aider en maths ?

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