Trigonometric surveys

Trigonometric surveys are a method used to measure land and create maps by using principles of geometry and angles. Surveyors determine the position of points on the Earth's surface by measuring angles between known reference points and the target points across distances. Using the Earth's curvature and basic trigonometry, these angles help calculate exact locations and distances accurately over large areas. This technique is especially useful in terrains where direct measurement is difficult. It forms the foundation for accurate mapping, land division, and infrastructure development, ensuring precise geographic data for planning and construction.