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Free testmediumearth-coordinates
One degree of longitude at the equator is equal to approximately:
A
30 NM
B
60 NM
C
90 NM
D
120 NM
B
60 NM✓ Correct Answer
Explanation
At the equator, one degree of longitude is approximately 60 NM; this decreases with the cosine of latitude as meridians converge toward the poles.
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