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Volume = 10 x 5 x 12 cm
= 600cm kubik (cm3)
= 10 x 5 x 12
= 600 cm³
L.p = 2 × (pl+pt+lt)
= 2 × (10*5 + 10*12 + 5*12)
= 2 × (50 + 120 + 60)
= 2 × 230
= 460 cm²
Semoga membantu, thanks :)