360 brainliest? Have a nice day
        
             
        
        
        
Answer:
its 40
Step-by-step explanation:
180-100=80
80/2= 40
 
        
             
        
        
        
The slope of the line that passes through the points (14/5) and (20, -4), so you take y-y/x-x so you substitute the y's in for 5 and -4 and x in for 14 and 20. 
5--4/ 14-20
9/-6
Then you make the fraction smaller! 
-3/2 = Answer <span />
        
             
        
        
        
A). They are not similar, because 6/13 is not equal to 8/20
For triangles to be similar, the ratios of sides need to be the same (shortest to shortest, middle to middle, longest to longest). The shortest sides are 6 and 13, respectively, the middle ones are 8 and 20. Because 6/13 is not equal to 8/20, the triangles are not similar.