Jawaban:

a. volume balok = p x l x t

balok 1 = 3 x 2 x 4 = 24 cm³

balok 2 = 10 x 2 x 2 = 40 cm³

gabungan = 24 + 40 = 64 cm³

b. volume balok = p x l x t

balok = 9 x 3 x 6 = 162 cm³

volume kubus yang bolong = s x s x s

kubus = 3 x 3 x 3 = 9 cm³

balok = 162 - 9 = 153 cm³

c. volume balok = p x l x t

balok 1 = 6 x 5 x 7 = 210 cm³

balok 2 = 2 x 5 x 2 = 20 cm³

gabungan = 210 + 20 = 230 cm³

d. volume balok = p x l x t

balok = 10 x 10 x 1 = 100 cm³

volume kubus = s x s x s

kubus = 4 x 4 x 4 = 64 cm³

gabungan = 100 + 64 = 164 cm³