What is the process of triangulation used for in surveying?

The process of triangulation in surveying is employed specifically for determining the location and distance of points by measuring angles from known points. Triangulation relies on the principle of forming triangles to identify the coordinates of various points on a survey. By measuring angles at one or more known locations (the vertices of the triangle), surveyors can calculate distances to unknown points through trigonometric calculations. This method is particularly advantageous in large or uneven terrains where direct measurement may be impractical.

The other options do not accurately describe the primary application of triangulation. While measuring land area can be a derived outcome from triangulated measurements, triangulation itself is not directly used for that purpose. Similarly, creating boundary lines might be part of a broader surveying task but is not the fundamental focus of triangulation. Establishing property values is a function of appraisal and market assessment rather than the technical surveying technique of triangulation. Thus, the primary use of triangulation remains in determining distances and locations accurately through angle measurements, solidifying why that choice is the correct one.