Jawabanmu

2014-04-24T12:45:32+07:00
P:l:t = 4:3:2:1 = 4x:3x:2x 

Luas Alas = pxl
756 = 4x . 3x
756 = 12x
756/12 = x
63 = x

p = 4x = 4 . 63 = 252
l = 3x = 3 . 63 = 189
t = 2x = 2 . 63 = 126

Volume : p . l .t
252 x 189 x 126 = 6001128