Question 1053545:  find the perimeter of Triangle ABC where A(-4,-1), B(4,5), C(4,-2) 
and the answer is perimeter=___ + square root sign 
 Answer by Alan3354(69443)      (Show Source): 
You can  put this solution on YOUR website! find the perimeter of Triangle ABC where A(-4,-1), B(4,5), C(4,-2) 
-------- 
Find the 3 lengths, AB, AC & BC 
-- 
Use the distance formula: 
  
AB = sqrt(8^2 + 6^2) = 10 
----- 
do the other 2 sides. 
Add the 3 numbers. 
  | 
 
  
 
 |   
 
 |