An instrument used for setting out right angle in surveying a parcel of land is

  • A Measuring rod
  • B Abney level
  • C A ranging pole
  • D Theodolite
  • E An optical squarer

The correct answer is E. An optical squarer

Surveying or land surveying is the technique, profession, and science of determining the terrestrial or three-dimensional positions of points and the distances and angles between them

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