pake caranya plis yyyyy

1.v = d × w = 30 × 480 = 14400 cm³
8 × 60 = 480 detik

2.D= v/w = 120 /15 = 8 liter/menit
1/4 × 60 = 15 menit

3.w=v/d = 1120/8 = 140 detik
2 × 560 = 1120 detik

4.w = j/k = 350/50 = 7 jam 

5.L₁ = 1/2 × [tex] \pi [/tex] × d = 1/2 × 22/7 × 14 × 14 = 22 × 14 = 308 cm²
   L₂ = p × l = 112 × 28 = 3136 cm²
   L₃ = 1/2 × [tex] \pi [/tex] × d = 1/2 × 22/7 × 14 × 14 = 22 × 14 = 308 cm²

308 cm² + 3136 cm² 308 cm² = 3752 cm²

Semoga membantu...