Practice Quiz

Surveying FS

Category - Math & Science

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Why is trilateration important to the Global Positioning System (GPS)?
  1. Trilateration is a method used to calculate the relative location of an object that requires four reference points.
  2. The triangulation method was found to be based on incorrect mathematics and has been abandoned in practice.
  3. Trilateration is a complex word that confuses many and fulfills the government’s desire to make everything as confusing as possible.
  4. None of the above
Explanation
Answer: A - Trilateration is important to GPS because it is a method used to calculate the relative location of an object that requires four reference points. Trilateration is the process of determining relative point locations using spherical geometry. The trilateration method is used by GPS technology to determine an object’s x, y, and z coordinate location utilizing at least four reference points (satellites).
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