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Sagot :

Bonsoir,

volume total cylindre:

3,14 * 3²  * 7 =>197,82cm³

volume cylindre:

(pir²*h)/3

(3,14 * 3² * 7)/3= >65, 34cm³

aire du cylindre restant:

197,82- 65,34 => 132,48cm³

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