There is a not so well-known theorem that solves this problem.
The theorem is stated as follows:
"Each angle bisector of a triangle divides the opposite side into segments proportional in length to the adjacent sides"  (Coxeter & Greitzer)
This means that for a triangle ABC, where angle A has a bisector AD such that D is on the side BC, then 
BD/DC=AB/AC
Here either
BD/DC=6/5=AB/AC, where  AB=6.9,  
then we solve for  AC=AB*5/6=5.75,
or
BD/DC=6/5=AB/AC, where  AC=6.9,  
then we solve for AB=AC*6/5=8.28
Hence, the longest and shortest possible lengths of the third side are 
8.28 and 5.75 units respectively.
        
                    
             
        
        
        
Answer:
The slope is -4 over -5 
Step-by-step explanation:
Your equation should be y2-y1 over x2-x1. At first you will get -8 over -10 then you simplify and get -4 over -5
 
        
                    
             
        
        
        
Central angle of a regular polygon:
Ф = 360° : n. 
If n=12:  Ф = 360° : 12 = 30°
At the angle of rotation Ф = 30°  the image of the polygon will coincide with the preimage.
        
             
        
        
        
Answer:
RED
BLUE
BLUE 
RED
BLUE
<h2>MARK ME BRAINLIEST PLSSS</h2>
 
        
             
        
        
        
Answer:
The constant of variation is 5 (B)
Step-by-step explanation:
if R varies directly with S
R ∝ S
R =kS
k = constant of variation
when S is 16 R is 80
80 =16k
k=5