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Souricette
@Souricette
April 2019
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Bonjour,
J'ai vraiment besoin d'aide pour un exercice en Maths :
Un cône a un volume de 36 cm(au cube).
Le disque de base a un rayon de 4 cm.
En prenant 3 comme approximation de pi, calculer la hauteur de ce cône.
Merci d'avance pour ceux qui m'aideront !
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ansefre
Formule volume d’un cône π×r²×h/3= 36 cm³ pour trouver il faut faire
π
×r²/3 ⇒ 3×16/3=16
36/16=2.25
la hauteur du cône est de 2.25 cm
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36/16=2.25
la hauteur du cône est de 2.25 cm