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trig

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A tree growing on a hillside casts a 121-foot shadow straight down
the hill. Find the height of the tree (in feet) if the slope of the hill is 8 degrees
and the angle of elevation of the sun from the horizontal is 50degrees.

  • trig -

    see whether you can figure how I developed the required formula for the height h of the tree:

    h = 121(cos8°tan50° - sin8°) = 126 ft

    Draw a diagram and figure out some of the distances.

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