AnswerASK THE TEACHER
Step-by-step explanation:
 
        
             
        
        
        
I guess you are asking the measurement of the external angle of 60. If so it will be 120 or the supplement of 60 is 120
        
             
        
        
        
Answer:  
 
Step-by-step explanation:
Given term: 
<em>In algebra, like terms are the terms which have the same variables with same powers. </em>
Here the variables are a and d, where d has power 3.
From the given options  is the right answers as it has the same variables and power.
 is the right answers as it has the same variables and power.
Rest of other options are unlike terms to the given term.