volume = ...........cm3

bangun dipotong menjadi 2 balok.
volume balok kecil = 12 cm x 10 cm x 10 cm = 1200 cm³
volume balok besar = 30 cm x 10 cm x 8 cm = 2400 cm³
.
volume gabungan = 1200 + 2400 = 3600 cm³

V1 = p x l x t
=12 x 10 x (18-8)
=12 x 10 x 10
= 1200

V2= p x l x t
= 30 x 10 x 8
= 2400

V total = V1 + V2
= 1200 + 2400
= 3600