oblicz pole powierzchni i objetość walca powstalego w wyniku obrotu prostokata o wymiarach 12cm, na 7 cm wokol krotszego boku
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r=12
h=7
Ppc = 2π*r+2π*r*h
Ppc = 2π*12+2π*12*7
Ppc = 24π + 168π
Ppc = 192 π cm²
V = πr^2*h
V = 144π *7
V = 1008 π cm³