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Calcul de l’Aire et du Volume des Sphères (Nombres Décimaux au Dixième Près) (A)

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Aire et Volume des Sph`eres (A)

Calculez l’aire et le volume de chaque sph`

ere.

Aire = 4πr2 Volume = 4 3πr 3 • r = 16,5 nm

1.

• r = 2,7 dm

2.

• d = 52,8 dam

3.

• d = 22,0 ft

4.

MathsLibres.com

(2)

Aire et Volume des Sph`eres (A) R´eponses

Calculez l’aire et le volume de chaque sph`

ere.

Aire = 4πr2 Volume = 4 3πr 3 • r = 16,5 nm

1.

Aire: 3421,2 nm2 Volume: 18.816,6 nm3 • r = 2,7 dm

2.

Aire: 91,6 dm2 Volume: 82,4 dm3 • d = 52,8 dam

3.

Aire: 8758,3 dam2 Volume: 77.072,7 dam3 • d = 22,0 ft

4.

Aire: 1520,5 ft2 Volume: 5575,3 ft3

MathsLibres.com

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