Answer:
sqrt(area)
Explanation:
- Here sqrt is a short form of square root.
- area is a variable name having he area of square.
- When the function is called, it will give the square root of the value stored in variable area.
As we have to find the length of the diagonal, we must knew that as all sides of the square are same in length so are the diagonals. This means that each of the four sides of the square and it diagonals are equal in length.
So a square has: length=breadth=diagonal
As  Area= length*breadth
√area = length           (as length = diagonal length)
So      √area = diagonal length
 
        
             
        
        
        
Answer:
A lightweight process for cross-functional, self-organized teams.
Explanation: The process in which teams are cross functional and self organizing to complete a particular task. This term is used in software development. Progress towards well defined goal with by emphasizing on teamwork and accountability. 
 
        
             
        
        
        
Answer:D)Conversion tracking
Explanation:Conversion tracking is the tool that helps the user to know about the interaction of the ad given by him with customer. It helps in the tracking in the ways like calls from ads, call conversion importing,mobile website gaining the number of clicks etc.
Thus,  Adam needs to use the conversion tracking tool which for driving the calls towards his store.He can track the effectiveness of the ad which drives the calls.
Other options given are incorrect because they cannot keep the record of the  ads seen by the customer with the help of tracking. Thus the correct option is option(D).
 
        
             
        
        
        
C hope that helps :)))) H G D