You are on course 180°T and take a relative bearing of a lighthouse of 225°. What is the true bearing of the lighthouse?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 045°
Calculating true bearing via TB = TC + RB, adding the course of 180°T and relative bearing of 225° equals 405°. Subtracting 360° normalizes the result to 045°T, in accordance with standard Bowditch piloting procedures.
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