Réponse :
4) = 1/3 x coté x coté x hauteur
= 1/3 x 6 x 6 x 9
= 1/3 x 32 x 9
= 1/3 x 288
= 96 m3
5) = 3.14 x r x r x hauteur
= 3.14 x 1.5 x 1.5 x 4
= 3.14 x 2.25 x 4
= 3.14 x 9
= 28.26 m3
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Réponse :
4) = 1/3 x coté x coté x hauteur
= 1/3 x 6 x 6 x 9
= 1/3 x 32 x 9
= 1/3 x 288
= 96 m3
5) = 3.14 x r x r x hauteur
= 3.14 x 1.5 x 1.5 x 4
= 3.14 x 2.25 x 4
= 3.14 x 9
= 28.26 m3