Jawabanmu

2014-05-11T19:54:00+07:00
486 cm³..................................
maaf kalau slah
oh ya sisi kubus kan ada 6 jadi 81x6= 486 cm3
ya bener 81x6
sisi=9 cm
volume kubus=9x9x9=729
2014-05-11T20:29:15+07:00
Volume kubus = SxSxS
luas alas kubus = SxS
81cm^2 = S^2  
9 cm = S   
volume kubusnya = SxSxS
9x9x9 = 729 cm^2