So, if you add 25 and 52 you get 75. All angles of a triangle need to add up to 180. the angle c will be around 105 degrees i assume 
        
             
        
        
        
Answer:
14491.060542
Step-by-step explanation:
 
        
             
        
        
        
Answer:
see explanation
Step-by-step explanation:
Using the Pythagorean identity
cos²A + sin²A = 1 ( divide terms by cos²A )
 +
 +  =
 =  , that is
 , that is
1 + tan²A = sec²A ← as required
 
        
             
        
        
        
The ratio of boys to girls is 3/5.
        
                    
             
        
        
        
The other angel is also equal to x and the sum of all angels need to be 360:
2x+90+26=360 
2x=244
X=122