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Verified answer
Bangun Ruang Sisi DatarV. awal = ⅓ × p × l × t
= ⅓ × 18 × 10 × 12
= 720 cm³
Dibagi 2 , alas nya sebangun
Di bagian X
6 / 12 = p / 18
• p = 9 cm
6 / 12 = l / 10
• l = 5 cm
V. limas X = ⅓ × 9 × 5 × 6
= 90 cm³
Maka
V. prisma Y = 720 - 90 = 630 cm³
[B]