Answer :
Final answer:
All points on a circle with a radius of 4000 miles centered at the North Pole are exactly 4000 miles from the North Pole.
Explanation:
To find the points on the Earth's surface that are exactly 4000 miles from the North Pole, we can consider a circle with a radius of 4000 miles centered at the North Pole.
Since the radius of the Earth is 3960 miles, any point on this circle will be 4000 miles away from the North Pole and will lie on the surface of the Earth.
Therefore, all points on this circle will satisfy the condition of being exactly 4000 miles from the North Pole.
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