The ISS orbits at 360 km above the Earth. If the radius of the Earth is 6738 km, how far is it from the ISS to the horizon? (Use the diagram below.)
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Q: Convert 95,748 ft^2 to hectares 0.88999 ha 0.88953 ha 0.99889 ha 0.89853 ha
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The line joining the centre of the earth and the satellite, the line joining satellite and horizon and the line from centre to the horizon together form a right triangle.
Apply Pythagoras theorem.
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