kylaprimus6706 kylaprimus6706
  • 13-05-2018
  • Mathematics
contestada

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

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CastleRook
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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