Jawabanmu

2014-05-16T15:18:45+07:00
Sisi aIas = 120/4 = 30 cm
voIum = La x t x 1/3 = 30 x 30 x 12 x 1/3 = 3600 cm3

maaf kaIo saIah..
2014-05-16T15:23:01+07:00
K = 4.s
120/4 =s
30 = s

V=1/3.La.t
  = 1/3.30.30.12
  = 3600 cm³