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A plane flies from A (60°N, 40°W) to town B (60°N, 140°E)
4 years ago

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PsyDAG
What is your question?
4 years ago
oobleck
since the towns are at the same latitude, the radius of the circle flown is Rcos60 = 1/2 earth radius
so the distance flown is s = rθ = R/2 * (140+60)/360 * 2π

unless the plane flies along a great circle ...
4 years ago
marselinus Gideon
yes I response to maths
3 years ago

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