I need help with finding the answer to a circle problem

Question

Find the distance between Memphis (35 degrees 9 minutes north latitude) and New Orleans (29 degrees 57 minutes north latitude). Assume that the radius of the Earth is 3960 miles. This is for Pre-calculus with speeding conversions. This is also with circles, degrees and radians, and revelations 

Answer 1

Circumference of the earth is 7200π

The distance between the two is 5° 12" out of 360°

That fraction is 5.2/360 or 0.0144....

 

What is 0.0144 of 7200π?

Answer 2

Try:

distance=3960 miles*tan(35^o9'-29^o57')

=3960 miles*tan(5.2^o)

=360.4 miles