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Triangulation is a surveying technique used to measure distances and angles on the surface of the earth. By connecting triangles with vertices at marked stations, the lengths and directions of other sides can be computed. This process establishes accurate control points for large-scale surveys, photogrammetric surveys, and engineering works. the principles, purposes, and classifications of triangulation, as well as the layout and specifications of primary, secondary, and tertiary triangulation.
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Geodetic Surveying
Purpose of Triangulation
Primary Triangulation
Secondary Triangulation
Layout of Triangulation
Simple triangles in chain
Centred Triangles and Polygons
Factors to be consider in selecting a figure
Grid iron system
Centered system