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h-12dm
π-3,14cm
V=πr²*h
V=π5²*12
V=π25*12
V=π300
V=3,14*300
V=942dm³
C = V * 5
C = 942dm³ * 5 = 4710dm³
1dm³ = 1l
4710dm³ = 4710l
Odp : Do 5 takich beczek zmieści się 4710l farby.
Dajesz naj ? ^^