You are on course 357°T and take a relative bearing of a lighthouse of 180°. What is the true bearing to the lighthouse?

Correct Answer: Option A — 177°

True bearing is calculated by adding the relative bearing to the true course (True Bearing = True Course + Relative Bearing). For course 357¼irc and relative bearing 180¼irc, the sum is 537¼irc. Subtracting 360¼irc yields a true bearing of 177¼irc.