The rule is that the angle is half the measure of the intercepted arc.  So it's 110.
        
             
        
        
        
Answer:
21
Step-by-step explanation:
 
        
             
        
        
        
The inverse functions of sine, cos and tan functions are csc, sec and cot respectively.
<u>Step-by-step explanation:</u>
The reciprocals of sine, cos and tan functions are csc, sec and cot functions. The reciprocal of cosine function is secant, (sec)  sec θ =  
The inverse or reciprocal function is cosecant (csc), 
The inverse tangent function is cotangent (cot) , expressed in two ways:  or
   or 
So  then its reciprocal or inverse is termed as cot θ.
 then its reciprocal or inverse is termed as cot θ.