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Jawaban:

Volume gabungan = 14.592 cm3

Penjelasan dengan langkah-langkah:

Volume 1 = P × l × t = 40 × 16 × (30 – 12)

= 40 × 16 × 18 = 11.520 cm3

Volume 2 = P × l × t = (40 – 12 – 12) × 16 × 12

= 16 × 16 × 12 = 3.072 cm3

Volume gabungan = V1 + V2 = 11.520 + 3.072 = 14.592 cm3