Answer:
The scale factor is 1.2.
Step-by-step explanation:
18/15 = 1.2
30/25 = 1.2
24/20 = 1.2
Hope that helps!
 
        
             
        
        
        
The first triangle has a perimeter of 4+6+10 = 20. 
The 2nd longest side is 6/20 = 3/10 of the perimeter. In the larger triangle, the 2nd longest side will have length (3/10)*60 = 18.
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These side lengths mean the "triangle" is a line segment. That is, it has zero area.
        
             
        
        
        
Answer:
a. is B b. is D
Step-by-step explanation:
 
        
             
        
        
        
Questions answered for your homework good luck I also added the steps just if you forget