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V=1/3 * pi * r (kwadrat) *H
v= 1/3 * pi *50(kwadrat)*1,2
v=1/3 *pi * 250*1,2
v=300/3
v= 100 cm (szesciennych)
5 beczek
czyli
5 * 100 cm (szesciennych)= 500 cm szesciennych