In the resection method, what is used to determine your current location?

In the resection method, what is used to determine your current location?

• A. One known feature
• B. Three known features
• C. Two known features
• D. Unknown features

Answer: (C)

Resection fixes your position by using bearings to two known landmarks. You measure the direction from your current location to each feature, then plot a line from each feature on the map along that bearing. The intersection of those two lines gives your location. Two features are the minimum needed because one feature only yields a single line of possible positions, not a specific point; using a second feature pins your exact position. Adding a third feature provides extra check and improves accuracy, but two known features are what let you determine where you are. Choose well-defined, easily identifiable features that are accurately located on your map to reduce error.

Resection fixes your position by using bearings to two known landmarks. You measure the direction from your current location to each feature, then plot a line from each feature on the map along that bearing. The intersection of those two lines gives your location. Two features are the minimum needed because one feature only yields a single line of possible positions, not a specific point; using a second feature pins your exact position. Adding a third feature provides extra check and improves accuracy, but two known features are what let you determine where you are. Choose well-defined, easily identifiable features that are accurately located on your map to reduce error.