A parallelogram
Because...
-opposite angles are congruent
-four sides
-angles must equal 360
       100 + 100 +80 + y = 360
       280 + y = 360
       y = 80
-the angle we don't know is 80 degrees
        
             
        
        
        
Answer:
0.8213
Step-by-step explanation:
-This is a binomial probability problem given by the function:

Given that n=21 and p=0.2, the probability that she experience a delay on at least 3 days is calculated as:

Hence, the probability that she experience delay on at least 3 days is 0.8213
 
        
             
        
        
        
Every degree is a touching point since each root factor is an  x intercept
therefor the answer is 8th degree
        
             
        
        
        
Add up all the sides of the rectangle