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p = 4a
l = 3a
t = 2a
V = p × l × t
1.536 = 4a × 3a × 2a
1.536 = 24a³
64 = a³
∛64 = ∛a³
4 = a
p = 4a
= 4(4)
= 16 cm
l = 3a
= 3(4)
= 12 cm
t = 2a
= 2(4)
= 8 cm
Rusuk = 4(p + l + t)
= 4(16 + 12 + 8)
= 4(36)
= 144 cm
Jadi panjang kerangka balok tersebut adalah 144 cm.