Plane Table : Intersection Method
Used When points are not accessible, due to Waterlogged area, River in between, Valley in between. So distances from the Plane Table, cant be measured so, this method is used. This method is the best example of SURVEYING 2nd Principle, that, "to llcate nay new station or point TWO independent measurements are neede", here those measurements are TWO DIRECTIOSN drawn from two different stations of the BASE line.