What is the principle of GPS?

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5. What is the full form of Gagan?
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Tags

1. #trilateration
2. #global
3. #principle
4. #mathematical
5. #determines
6. #positioning
7. #satellites
8. #receiver
9. #position
10. #distance
11. #determined
12. #determine
13. #based
14. #measurements
15. #operation
16. #figure
17. #working
18. #earth
19. #system