Trigonometry XI


   
 
Grade measure (Centesimal system or French system)
The principal unit of this system is grade(g) which is one hundreds part of right angle.
 
one grade = 100 minutes
 
1 minutes = 100 seconds
 
\ 1 right angle = 100 grades (100g)
 
1g = 100 minutes (100')
 
1' = 100 seconds (100")
 
The attempt to introduce this grade system in France was not successful.
 
Relation between the three systems of measuring an angle.
 
Let D = number of degrees
 
G = number of grades
 
C = number of radians of an angle
 
 
 
 
 
 
 
 
 
 
 
     
   
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