find the distance between the cities,,assume that thee earth is a sphere radius of 4000 miles at that cities are on same longitude, one city is due north of the order,,,San Francisco California has 37 degree 47'36" while Seattle,Washington 47 degree 37'18"

Answer 1

the cities are 9°49'42" apart.

The full circumference is 8000π miles, and 360°

so, the distance is

(9°49'42")/360° * 8000π miles

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