Surveying
A Nautical mile is

One minute arc of the great circle passing through two points
1855.109 m
One minute arc of the longitude
All of these

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Surveying
Pick up the incorrect statement from the following. In a spherical triangle

Sum of any two sides is greater than the third
Every angle is less than two right angles
Sum of the three angles less than six right angles and greater than two right angles
Sum of the three angles is equal to two right angles

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