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4. Closing

Although including coordinates involves addition computations, they provide ability to indirectly determine other values. We saw examples here where the distance and direction can be determined between points not directly connected on a traverse. This is very useful where lines may be obstructed but we still need their length and direction. We will see in the next section how coordinates facilitate area computation.

Later still in the Coordinate Geometry topic, we'll see how integrating forward and inverse computations with trigonometric principles allow for greater field measurement and computational flexibility.