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A development is required for all these purposes save one. Which does not need it?

  • A.cutting a sheet-metal pattern for a duct
  • B.marking out a conical hopper before forming
  • C.laying out the wrapper for a cylindrical tank
  • D.calculating the volume enclosed by the solid

Answer: D

Correct answer: calculating the volume enclosed by the solid

A development is a pattern for the surface, so it serves anything involving cutting, marking out or forming sheet material. Volume is a property of the enclosed space and is computed from the dimensions directly, with no pattern needed.

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