Question

one minute of longitude in km
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Answer 1

Answer:

The approx value is 69 miles which is 111km

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Answer 2

One minute of longitude in km  is 1.852

A longitude is the measure of west/east of the prime meridian.

​One degree of longitude = 60 miles

This implies - 60 minutes of longitude = 60 miles

Therefore,

1 Minute  of longitude = 60/60 = 1

Converting miles into kms -

1 Minute of longitude = 1.852 km ( Sea Mile)

1 Minute of longitude = 1.602 ( Land Mile)