Answer :

Since3122015
[tex]V=\pi r^2 h\\V=(A)h\\V=(2.5)(7)\\V=17.5[/tex]

17.5 cubic feet.
[tex]The\ cylinder\ volume:V=Bh\\\\B-a\ base\ area;\ h-height\ of\ cylinder\\---------------------\\\\B=2.5\ ft^2;\ h=7\ ft\\\\therefore\\\\\boxed{V=2.5\ ft^2\cdot7\ ft=\boxed{17.5\ ft^3}}[/tex]

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