4. Volume tabung = π × r² × t

Volume Tabung = 22/7 × 7² × 12

Volume Tabung = 1848 cm³ (C)

5. Volume Limas = ⅓ × luas alas × tinggi

Volume Limas = ⅓ × p × l × tinggi limas

Volume Limas = ⅓ × 15 × 12 × 10

Volume Limas = 600 cm³ (B)

6. Luas Permukaan Kerucut = π × r × (r + s)

Luas Permukaan Kerucut = 3,14 × 5 × (5 + 12)

Luas Permukaan Kerucut = 266,9 cm²

7. Volume Kerucut = ⅓ × π × r² × t

Volume Kerucut = ⅓ × 3,14 × 3,5² × 6

Volume Kerucut = 76,93 cm³

Volume Tabung = π × r² × t

Volume Tabung = 3,14 × 3,5² × 8

Volume Tabung = 307,72 cm³

Jadi, volume kedua bangun = 307,72 + 76,93 = 384,65 cm³ (C)

8. (D)

9. Volume Tabung = π × r² × t

Volume Tabung = 22/7 × 7² × 20

Volume Tabung = 3080 cm³ (A)