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Sagot :

Let's plug the given value is in the formula : [tex]{ V }_{ cylinder }=\quad \pi { r }^{ 2 }h[/tex] 

First cylinder : [tex]{ V }_{ cylinder1 }=\quad \pi { 8 }^{ 2 }21=\pi \cdot 64\cdot 21=1344\pi \quad { cm }^{ 3 }[/tex]

Second cylinder : [tex]{ V }_{ cylinder2 }=\quad \pi { 11 }^{ 2 }45=\pi \cdot 121\cdot 45=5445\pi \quad { cm }^{ 3 }[/tex]

[tex]5445-1344=4101\\ \\ 4101\pi \quad { cm }^{ 3 }[/tex]

Answer is D