Sagot :

Bonsoir,

r = 4,5/2 = 2,25

Volume du cylindre:

3,14 * 2,25² * 3,5 =>55,64m³

volume 1/2 sphère:

(4pir³)/3

(4* 3,14 * 2,25³ )/3 => 47, 69m³

Total:

55,64 + 47,69 => 103m³