| 3 items are filed under this topic. 
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   | tan inverse 1/4 | 2016-03-14 |  
  |  | From nazz: prove; tan inverse 1/4=1/3 cot inverse 52/47
 Answered by Chris Fisher.
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   | Angle of incline | 2010-01-20 |  
  |  | From Alan: how do I fnd the angle of an incline with a measurement of 0.042 with an adjacent of 1.2mtrs?. Thank You
 Answered by Penny Nom.
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   | The angles in a right triangle | 2007-03-28 |  
  |  | From Golaan: I need the to understand the formula for finding either of the acute angles of a right triangle given it's hieght length and base length.
I want to find the degrees of either accute angle.  So for this example I have a right triangle with a height of 410 meters and a base length of 1,700 meters.  
I don't understand cosine, sine, and tangent or the other ones at all.  So if the solution includes those (which I believe it does) could b very verbose yet in a very elementary way?
 
 The purpose of ths is that I have to define the general incline angles (or grade) of various areas of terrain.  I know the distance by map and also the the altitude at either endpoint.
 Answered by Penny Nom.
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