Jawab:
[1.]  Sisi kubus = 20 cm
[2.] Tinggi balok = 2 cm
[3.] Tinggi tabung = 10 cm
[4.] Tinggi kerucut = 9 cm
[5.] Tinggi prisma = 25 cm

Penjelasan dengan langkah-langkah:
[1.] Volume kubus 8.000 cm³
= 8.000/1.000 dm³
Vol = 8 dm³
Sisi (s) = ³√Vol = ³√8 dm = 2 dm
2 dm = 2×10 cm = 20 cm
Sisi kubus = 20 cm

[2.] Balok. Vol = 120 cm³, P = 10 cm, L = 6 cm
T = Vol./(P×L) = 120/(10×6) = 120/60 = 2 cm
Tinggi balok = 2 cm

[3.] Tabung. Jari (r) = 7 cm, Vol ≈ 1.540 cm³
π ≈ ²²/₇. Vol = π×r×r×t   maka
Tinggi (t) = Vol/(π×r×r)
Tinggi (t) = 1.540/(²²/₇×7×7) = 1.540/(22×7)
Tinggi (t) = 1.540/154 = 10 cm
Tinggi tabung = 10 cm

[4.] Kerucut. Jari (r) = 7 cm, Vol ≈ 462 cm³
π ≈ ²²/₇. Vol = (π×r×r×t)÷3   maka
Tinggi (t) = (3×Vol)/(π×r×r)
Tinggi (t) = (3×462)/(²²/₇×7×7) = 1.386/(22×7)
Tinggi (t) = 1.386/154 = 9 cm
Tinggi kerucut = 9 cm

[5.] Prisma segitiga. Alas (a) = 8 cm,
tinggi alas (h) = 10 cm. Vol. = 1.000 cm³
Vol = (a×h÷2)×T   maka
Tinggi prisma (T) = (2×Vol.)/(a×h)
Tinggi prisma (T) = (2×1.000)/(8×10)
Tinggi prisma (T) = 100/4
Tinggi prisma (T) = 25 cm

(xcvi)