If A Ladder 35 M. Long Is Placed So As To Reach A Window 20 M. High, What Angle Does It Make With The Level Ground?

If a ladder 35 m. long is placed so as to reach a window 20 m. high, what angle does it make with the level ground?

 

Make a right triangle with hypotenuse=35 and leg(height)=20 then use CAH, Cosine = adyacent / hypotenuse.

Calculated with TrianCal, angle ≈ 34.85°.


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