kylaprimus6706 kylaprimus6706

13-05-2018
Mathematics

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An escalator ascends 45 feet over a horizontal distance of 30 feet. what is the angle of elevation?

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CastleRook CastleRook

22-05-2018

The angle of elevation will be given by:
cos θ=adjacent / hypotenuse
thus
adjacent=30 ft
hypotenuse=45 ft
thus
cos θ=30/45=2/3
hence
θ=arccos 2/3
θ=49.2°

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