No 9&10 tolong isi cara ya kak plis besok mau dikumpul

aku bisa jawab no 10 doang nih :v
[tex]v = \pi \: r \: {}^{2} \: t \\ 3.14 \times 5 {}^{2} \times 12 \\ 3.14 \times 25 \times 12 = 942[/tex]

9) V = L × t
= 12 × 3
= 36 cm3

10) V = L × t
= π × r² × t
= 3,14 × 5 × 5 × 12
= 942 cm3