Navigation PPLintermediate
Select ALL correct statements about great circles and small circles.
Answer
A great circle has the Earth's centre as its centre., The equator is a great circle., A parallel other than the equator is generally a small circle.
Explanation
A **great circle** is formed by a plane passing through the Earth's centre, so the equator is a great circle. Other parallels of latitude do not pass through the centre and are small circles. A small circle's centre is not the Earth's centre.\n\n**Key takeaway:** The equator is the only latitude parallel that is a great circle.\n\n**Glossary:** **Small circle**: a circle on a sphere whose plane does not pass through the sphere's centre.
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