Two points on the same non-equatorial parallel lie at 010°E and 020°E. Their rhumb-line distance is always:
Answer
Less than 600 NM
Explanation
Ten degrees of longitude would span 600 NM at the equator. On any other parallel, meridians are closer together, so the east–west distance is less than 600 NM. **Key takeaway:** Longitude distance contracts with increasing absolute latitude. **Glossary:** **Parallel**: A circle of constant latitude; **rhumb line**: A constant-bearing route.