Tolong ya... sebelumnya terima kasih.. (pakai cara ya)

29 ) Volume = π × r × r × t
= 3,14 × 10 × 10 × 25
= 7850 cm3

30 ) Volume kubus = s × s × s
= 14 × 14 × 14
= 2744 cm3
Volume balok = p × l × t
= 20 × 14 × 7
= cm3
Volume gabungan = 2744 + 1960
= 4704 cm3

[tex]9 \times 3 \times 0.5 = 13.5[/tex]