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r=5cm
H² =d² -(2r²)
H²=20² -10² =400-100 =300=100*3
H=√(100*3)
H=10√3 cm
V=πr²H
V=5²*10√3π =25*10√3π =250√3π cm³
√3≈1,73
π≈3,14
V=250*1,73*3,14
V=1358,05 cm³ =1,358dm³ >1dm³
1dm³=1l
można zmieścić 1l soku