Table C-6. Values of slope angle <^ and cot tj) for various slopes. 



Slope Angle 



Cot (X/Y) 



Slope (Y on X) 



1.0 



1.1 



1.2 



1.25 



1.3 



1.4 



1.5 



1.6 



1.75 



2.0 



2.25 



2.5 



2.75 



3.0 



3.25 



3.5 



3.75 



4.0 



4.25 



4.5 



4.75 



5.0 



5.5 



6.0 



6.5 



7.0 



7.5 



8.0 



8.5 



9.0 



9.5 



10.0 

 12 

 14 

 16 

 18 

 20 

 30 

 40 

 50 

 60 

 70 

 80 

 90 



100 



100 



50 



33.3 



25 



20 



16.7 



14.3 



12.5 



11.1 



10.0 

 8.3 

 7.1 

 6.25 

 5.6 

 5.0 

 3.3 

 2.5 

 2.0 

 1.7 

 1.4 

 1.25 

 1.1 

 1.0 



C-43 



