Jawabanmu

2014-05-15T19:28:20+07:00
V = p x l x t
540 = 9cm . 3x . 5x
540 = 9cm . 15x²
540/9 = 15x²
60 = 15x²
x² = √4
x = 2 cm.
lebar = 3 . 4 = 12 cm
tinggi = 5 . 4 = 20 cm
maaf salahhh..
lebar = 3 . 2 = 6 cm
tinggi = 5 . 2 = 10cm
:D
Txs u
ok