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The volume of a cube is 512 cm³, Its surface area is ?

1. 64 cm²
2. 256 cm²
3. 384 cm²
4. 512 cm²

Correct Option: C

∵ a³ = 512 = 8 x 8 x 8
⇒ a = 8 cm
∵ Surface area = 6a²
=[6 x (8)²] cm²
=384 cm²