Top of Eiffel Tower
Geometry
Level
3
From how far on a clear day and assuming there are no obstructions, could you see from the top of the Eiffel tower? Take the height of the Eiffel tower as 300 meters and the radius of the Earth as 6240 kilometers. Give your answer to the nearest kilometers.
Image credit: Wikipedia pnc_net
The answer is 61.
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1 solution
The distance will be calculated as sqrt(2Rh)
=sqrt(2x0.3x6240)
≈61km
For details refer 'curvature correction in surveying'