Jawaban:

3. VK = s × s × s

VK = 20 × 20 × 20

VK = 8.000 cm³

VB = p × l × t

VB = 60 × 40 × 40

VB = 96.000 cm³

8.000 + 96.000 = 104.000 cm³

4. VB = p × l × t

VB = 30 × 20 × 15

VB = 9.000 cm³

VLSE = ⅓ × luas alas × t

VLSE = ⅓ × 30 × 20 × (42 - 15 = 27)

VLSE = 5.400 cm

9.000 + 5.400 = 14.400 cm³

5. VT = π × r² × t

VT = 3,14 × 10 × 10 × 24

VT = 7.536 cm³

VB = ⅔ × π × r³

VB = ⅔ × 3,14 × 10 × 10 × 10

VB = 2.093,34 cm³

7.536 + 2.093,34 = 9.629,34 cm³

6. VT = π × r² × t

VT = 22/7 × 10,5 × 10,5 × 15

VT = 5.197,5 cm³

VK = ⅓ × π × r² x t

VK = ⅓ × 22/7 × 10,5 × 10,5 × (40-15 = 25)

VK = 2.887,5 cm³

5.197,5 + 2.887,5 = 5.775 cm³

CMIIW