Jawabanmu

2014-05-30T13:52:59+07:00
5a . 4a . 3a = 1620
a = 3
ukuran balok:
panjang = 5a = 15
lebar = 4a = 12
tinggi = 3a = 9
2014-05-30T14:15:46+07:00
5x . 4x . 3x = 1620
x = 3
panjang = 15
lebar = 12
tinggi = 9

semoga membantu