Find the distance between City A ​(46 degrees 2 prime46°2′ north​ latitude) and City B ​(23 degrees 38 prime23°38′ north​ latitude). Assume that the radius of Earth is 3960 miles.

Answer 1

You can use Law of Cosines:

d² = 3960² + 3960² - (2)(3860)(3960) cos 22° 24'

Or considering the curvature of the earth

d = (24° 24' / 360°)(2)(π)(3860)