Bonjour,
R = 3
h = 4
3,14 * 3² *4 =>113,04cm³
on double la hauteur:
h = 8
3,14 * 9 * 8 =>226, 08cm³
226,08/2 =113,04
Donc oui!
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Bonjour,
R = 3
h = 4
3,14 * 3² *4 =>113,04cm³
on double la hauteur:
h = 8
3,14 * 9 * 8 =>226, 08cm³
226,08/2 =113,04
Donc oui!