The volume of a cube is $512 c m^{3}$ . Find its total surface area.

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Solution

If volume of the cube is $512$ , then its side length $, a = \sqrt[3]{V} = \sqrt{512} = 8$ cm

Hence its total surface are $= 6 (a^{2}) = 6 (8)^{2} = 384$ cm sq.

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