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If the length of diagonal of a cube is 8√ 3 cm, then its surface area is?

512 cm2
384 cm2
192 cm2
786 cm2

Correct Answer: 384 cm2

Explanation:

∵ √3a = 8√3
⇒ a = 8
∴ Surface area = 6a²
= (6 x 8 x 8) cm²
= 384 cm²

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