Navigation PPLintermediate
Match each chart or route term to its defining property.
Answer
Rhumb line - Crosses meridians at a constant angle, Great circle - Shortest surface route between two points, Mercator chart - Shows rhumb lines as straight lines, Small circle - Circle whose plane does not pass through Earth's centre
Explanation
These properties distinguish route geometry from chart projection. Rhumb lines preserve a constant direction; great circles provide the shortest spherical route; Mercator charts portray rhumb lines as straight; and small circles are formed by planes that miss the Earth's centre.\n\n**Key takeaway:** Identify a line by its geometric property, not just its chart appearance.\n\n**Glossary:** **Conformal**: preserves local angles; **projection**: mathematical representation of a curved surface on a flat chart.
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