Determine the distance from LAT 34°18'S, LONG 172°40'E to LAT 34°18'S, LONG 152°38'E, by parallel sailing.

Correct Answer: Option A — 993.0 miles

Parallel sailing applies the formula: Departure = Difference of Longitude × cos(Latitude). Since the latitude is constant at 34°18'S, the difference of longitude is 20°02' (1202 minutes). Multiplying 1202 by the cosine of 34.3° results in 993.0 miles, the distance along the parallel between the two meridians.