Find the distance between city a and city b in miles

Question

City A(44degrees 4’ north latitude)

City B(23degrees 46’ north latitude)

Assume earths radius is 3960 miles

Answer 1

angle = 20 degrees 64-46 = 18 minutes

= 20 18/60 degrees

= 20.3 degrees

= 20.3pi/150 radtans

arc length = radians times radius

= 20.3pi/150 x 3960

=20.3pi(26.4)

= 535.92pi miles

= about 535.92(3.141593)

= 1,684 miles