City A is due north of City B. Find the distance between City A ​( 40 degrees 6 north​ latitude) and City B ​( 21 54degrees north​ latitude). Assume that the radius of Earth is 3960 miles.

Question

The distance between City A and B is

(Round to the nearest mile as needed)

Answer 1

40° 6' - 21° 54' = arc

are length = (arc / 360°)(2π3690)