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A cube of edge 4 cm is melted and recast into a cube of edge 'a'. What is 'a' (in cm)?

Class 10Conversion of SolidsMensuration
  • A8
  • B3
  • C5
  • D4

Step-by-Step Solution

Volume is conserved: , so cm. Recasting into the same shape and volume keeps the edge unchanged.
Answer: D) 4

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