The primary purpose of establishing a triangulation network in surveying is:
Choose the correct answer
To measure angles for setting out buildings only
To establish accurate control points over large areas using angle measurement from a single measured baseline
To measure depths of rivers
To locate underground utilities
Correct Answer
B. To establish accurate control points over large areas using angle measurement from a single measured baseline
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Triangulation: used to determine accurate positions (coordinates) of points over large areas by measuring angles of triangles (sides computed from baseline + trig). Provides a high-accuracy control network. Used for geodetic surveys, mapping of states, connection of isolated surveys. Only one baseline measured; all other distances derived.
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