Step-by-step explanation:

the polygon is 15 sided.
 
        
             
        
        
        
7.2 will be the answer
we use phyagerous thereom 
D^2 = 6^2 + 4^2
     = sq. root of 52
     = 7.2
hope it help\ed
        
             
        
        
        
Answer:
yes
Step-by-step explanation:
line ab^2=(3-0)^2+(5-2)^2=9+9=18
line bc^2=((0-(-2))^2+(2-10)^2=4+64=68
line ca^2=((-2)-3)^2+(10-5)^2=25+25=50
bc>CA>ab
if it's a right triangle, then bc^2=ab^2+ca^2
68=50+18
so, it's a right triangle
 
        
             
        
        
        
1) with this exercise you have the following  data , initial capital C =  $ 2,658 , rate of interest i= 9 % , time in years of  n = 15
2) with the formula M = C(1+i) ^n, can obtain  the account balance  M, at 15 years
M = 2,658(1+0.09)^15 = $9,681