Jawabanmu

2014-06-03T22:45:54+07:00
Jadi cari dulu luas permukaan
2.4.2 + 2.4.3 + 2.2.3
= 16 + 24 + 12
= 52 m2
jadi 52รท4= 13 kaleng
2014-06-03T22:45:56+07:00
Lp = 2(pl + pt + lt) = 2(8 + 12 + 6) = 52
banyak cat = 52/4 = 13 kaleng