Answer:
Option A.
Step-by-step explanation:
Properties of the similarity of two polygons, 
1). All angles of one polygon will be equal to the angles of the other polygon.
2). Their corresponding sides will be in the same ratio.
If the measures of corresponding angles of KLMN and ABCD are equal, but the lengths of the corresponding sides of ABCD are half those of KLMN,
Then the polygons ABCD and KLMN will be similar.
Option A will be the answer.
 
        
             
        
        
        
Answer:
i would go for a and c
Step-by-step explanation:
 
        
             
        
        
        
60 because 2:4 is 1/2, and when you divide by a fraction, you multiply by the reciprocal (2/1 instead of 1/2) which would be 60 in this case.
        
             
        
        
        
Answer:
m=0.25
Step-by-step explanation:
m = (y_2-y_1)/ (x_2-x_1) 
Let's get 2 of any coordinates in the graph, for example: (4,2) and (0,1) 
m = (1-2)/(0-4) = 1/4 or 0.25