Answer:
a: 2.234
Step-by-step explanation:
i checked after i took the test. its right, enjoy 
 
        
             
        
        
        
6/12=1/2
Therefore 6/12 is equal to 50/100 or 50%
        
                    
             
        
        
        
Answer:
it is C but that is not 100 points :'(
Step-by-step explanation:
 
        
             
        
        
        
So first of all you can find x and y because all triangles have interior angles that add up to 180 degrees. 
X= 10 degrees
Y= 60 degrees
Looking at the options, we see that the first statement is true. And if the angles are not equal, the triangles are not able to be similar.