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109 views

Its is the question related to the surveying and asked in the competitive examination.

asked Mar 5, 2019 in Civil Engineering by Avani kanabar | 109 views

2 Answers

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4 satellites need to find our laocation preceisily. 

answered Mar 11, 2019 by Lavanya Katta
Good question
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4 which the GPS receiver needs 4 satellites to work in 3 dimensions 
answered Mar 14, 2019 by Syed Saif Ali