a. 8. 960 b. 9. 480 c. 10. 600 d. 11. 200

Please, let me answer your question :)
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Mapel : Matematika
Tentang : Bangun Ruang
Pembahasan :

Diketahui :

- Balok I :
• p = 28 cm
• l = 20 cm
• t = 16 cm

- Balok II :
• p = 28/2 = 14 cm
• l = 20 cm
• t = 8 cm

Ditanya :
- V Total

VI = p x l x t
VI = 28 x 20 x 16
VI = 560 x 16
VI = 8960 cm³

VII = p x l x t
VII = 14 x 20 x 8
VII = 280 x 8
VII = 2240 cm³

V Total : 8960 + 2240
V Total : 11.200 cm³

Jawaban : 11.200 cm³ (D)

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