Answer:
12.7 degrees
Step-by-step explanation:
there are 180 degrees in a straight line, and since the angle opposite a is 167.3, we subtract that from 180 and we get 12.7
 
        
             
        
        
        
Answer: r + 4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 Answer is 62 degrees.
Step-by-step explanation:
The sum of all angles of a triangle is 180°
x + 70 + 48 = 180
x + 118 = 180
x = 180 - 118
x = 62
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
"per cent" means out of hundred, so it's 70 out of hundred. 
 
        
             
        
        
        
Since the angle is in radians, then s = rθ.