Jawabanmu

2014-05-17T22:40:46+07:00
Luas permukaan kubus =  6s^{2}
 6s^{2} =486  s^{2} = \frac{486}{6}  
s= \sqrt{81} 
 s=9cm

Volume kubus =  s^{3}
 s^{3} = 9^{3} 

 s^{3}=729cm^{3}
1 1 1