Question

Differentiation in length of an arc and its subtended chord on earth surface for

Answer 1

Two units of length, the nautical mile and the metre (or kilometre), were originally defined so the lengths of arcs of great circles on the Earth's surface would be simply numerically related to the angles they subtend at its centre. if is in nautical miles, and is in arcminutes (1⁄60 degree)

Answer 2

Explanation:

heya..

Two units of length, the nautical mile and the metre (or kilometre), were originally defined so the lengths of arcs of great circles on the Earth's surface would be simply numerically related to the angles they subtend at its centre. ... if is in nautical miles, and is in arcminutes (1⁄60 degree), 

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