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kubus sXs
volume bola : 22/7 X D
luas kubus = 6.sisi²
Luas Permukaan Tabung = 2 (π r 2 )+ 2 π r t = 2 π r ( r + t ), volume tabung = .r².t
volume bola = 4/3 x 22/7 x r³
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