oblicz pole powierzchni i objentosc bryly powstalej przez obrot pólkola wokól srednicy 6 cm .
v=4/3pi r^3
v=4.19*27=113,13cm^3
P=4 pi r^2
P=12,6*9=113,4cm^2
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v=4/3pi r^3
v=4.19*27=113,13cm^3
P=4 pi r^2
P=12,6*9=113,4cm^2