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V=12πcm³
Pp osi=12 cm²
Szukamy:
r=?
h=?
Rozwiązanie:
2rh=12/2
rh=6
πr²h=12π
rrh=12
rrh/rh=r
12/6=2=r
h=rh/r=6/2=3
Odp:Promień wynosi 6 cm a wysokość 3 cm.