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a hill in the tour de france bike race has a grade of 8%. To the nearest degree, what is the angle that this hill makes with a horizontal line?

Guest Feb 4, 2015

Best Answer 

 #1
avatar+88775 
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An 8% grade means that for everty 100 feet horizontally, the hill rises 8 feet vertically.

So we can use the tangent inverse to find this angle.....we have

tan-1(8/100) = about 4.57°

 

 

CPhill  Feb 4, 2015
 #1
avatar+88775 
+5
Best Answer

An 8% grade means that for everty 100 feet horizontally, the hill rises 8 feet vertically.

So we can use the tangent inverse to find this angle.....we have

tan-1(8/100) = about 4.57°

 

 

CPhill  Feb 4, 2015

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