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Cyruzovato
@Cyruzovato
January 2021
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Bonjour, pouvez bous m'aidez svp :) merci bcp
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Eliott78
Verified answer
Bonsoir,
Qu'est qu'un cheveu ?
C'est un minuscule cylindre...
Volume d'un cylindre = π × R² × h
Hauteur du cheveu = 15 cm = 150 mm
Rayon = 0,1 ÷ 2 = 0,05 mm
Calcul :
V = π × (0,05)² × 150
V = π × 2,5×10⁻³× 150
V = 0,375π
V = 1.178 mm³
V = 0.000000001178 m³
Le volume de ce cheveu est environ 1,18×10⁻⁹ m³
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Aidez moi svp juste pour le "A ton Tour " merci
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Lista de comentários
Verified answer
Bonsoir,Qu'est qu'un cheveu ?
C'est un minuscule cylindre...
Volume d'un cylindre = π × R² × h
Hauteur du cheveu = 15 cm = 150 mm
Rayon = 0,1 ÷ 2 = 0,05 mm
Calcul :
V = π × (0,05)² × 150
V = π × 2,5×10⁻³× 150
V = 0,375π
V = 1.178 mm³
V = 0.000000001178 m³
Le volume de ce cheveu est environ 1,18×10⁻⁹ m³