Navigation basics · Question 2 of 12
What distance does one minute of arc along a meridian correspond to?
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Answer
- B About 1 NM
Explanation
One degree of latitude along a meridian corresponds to about 60 NM, so one minute of arc is about 1 NM. This lets you measure distances on the latitude scale at the edge of the chart. Along a parallel of latitude this only applies at the equator, because the meridians converge towards the poles.