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Sagot :

Bonjour,

1)

r= 7,2/2 = 3,6

1)*(4pi r³) /3

(4pi * 3,6³)/3

= (4pi *46,656)/3

= 186,624 pi:3

=62,208pi dm³

2)

62195, , 208 * 3,14 = >195 dm³

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