SOLUTION: What is the distance along the earth’s surface between the North Pole and a point at 60° north latitude? (Use a radius for the earth of 3,960 miles.)

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Question 973304: What is the distance along the earth’s surface between the North Pole and a point at 60° north latitude? (Use a radius for the earth of 3,960 miles.)
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
The central angle between 60 degrees n latitude
and 90 degrees north latitude (North Pole)is 30 degrees,
or %28pi%29%2F6 radians. The length of the arc is radius
times angle in radians, or:
.
%28%28pi%29%2F6%29%283960mi%29=660%28pi%29mi
.
ANSWER: The distance along the surface is 660%28pi%29 miles.