Mathematics
If the volume of a cube is 729 m3, then its surface area is
486 cm2
324 cm2
162 cm2
None of these
Mensuration
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Answer
By formula,
Volume of cube = (Side)3
∴ (Side)3 = 729
Side = = 9 cm.
⇒ Surface area of cube = 6(side)2
= 6(9)2
= 6 × 81 = 486 cm2.
Hence, Option 1 is the correct option.
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