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a hill has a grade of 8%. what is the angle that the hill makes with a horizontal line?

Guest Apr 10, 2017
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An 8% grade means that  for every 100 horizontal feet of "run", the "rise" is 8 feet

 

So........using the tangent inverse, we have

 

tan-1 (8 /100)  ≈ 4.57°

 

 

 

cool cool cool

CPhill  Apr 10, 2017

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