tolong dijawab nomor 9,10 pakai cara

9. volume 1 = p x l x t = 30 x 30 x 10 = 9000
    volume 2 = p x l x t = 30 x 10 x 10 = 3000
    volume 3 = p x l x t = 30 x 30 x 10 = 9000
    9000 + 3000 + 9000 = 21000 cm³
10. volume 1 = p x l x t = 5 x 5 x 30 = 750
      volume 2 = p x l x t = 5 x 10 x 5 = 250
      volume 3 = p x l x t = 5 x 5 x 30 = 750
      750 + 250 + 750 = 1750 cm³