tolong di jawab dan kasih tau cara nya

Nmr 3
Vol= 22/7 × 14^2 × 34
= 22 × 28 × 42
= 25872 cm^3

Nmr 4
Vol= 22/7 × 14^2 × 20
= 22 × 28 × 20
= 12320 cm^3

Nmr 5
Vol= 3,14 × 10^2 × 34
= 314 × 34
= 10676 cm^3

Nmr 6
Vol= 3,14 × 10^2 × 25
= 314 × 25
= 7850 cm^3