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Solid modeling is based on ______, ______ and ______ geometric representation of physical object.

  • A.complete; valid; unambiguous
  • B.complete; valid; varying
  • C.incomplete; valid; unambiguous
  • D.complete; valid; undefined

Answer: A

Solid modeling is based on complete, valid and unambiguous geometric representation of a physical object. The representation must be complete, with enough information to answer any geometric question, valid, with points joined in a real solid, and unambiguous, so that it stands for one object only. 'Incomplete', 'varying' and 'undefined' go against this requirement. A solid model that is valid and unambiguous can be used to compute volume, mass and other properties, which is the reason such a model is used in design.

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