(√3 + 1)/8 the answer to the question
        
                    
             
        
        
        
Answer:
C 
Step-by-step explanation:
Because you should be subtract each other by 20x to transfer from side to another side.
 
        
                    
             
        
        
        
Answer:
100 revolitions
Step-by-step explanation:
180s = 3min
50s = 1min
50 * 2 = 100
 
        
                    
             
        
        
        
Melanie said:  
Every angle bisector in a triangle bisects the opposite side perpendicularly.
A 'counterexample' would show an angle bisector in a triangle that DOESN'T
bisect the opposite side perpendicularly. 
See my attached drawing of a counterexample.
Both of the triangles that Melanie examined have 
equal sides on both sides 
of the angle bisector.  That's the only way that the angle bisector can bisect
the opposite side perpendicularly.  Melanie didn't examine enough different 
triangles. 
 
        
        
        
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