triangulation
in surveying, the process of determining the location of a point by measuring only angles to it from known points at either end of a fixed baseline by using trigonometry
en-GB/tɹaɪæŋɡjʊleɪʃn/
en-US/tɹaɪˌæŋɡjuˈleɪʃən/
in surveying, the process of determining the location of a point by measuring only angles to it from known points at either end of a fixed baseline by using trigonometry