SOLUTION: Find in simplest radical form, the perimeter of triangle pqr with vertices p (4,6), q (0,9), and r (-4,-9)

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Question 1019337: Find in simplest radical form, the perimeter of triangle pqr with vertices p (4,6), q (0,9), and r (-4,-9)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the distance formula,
D%5B1%5D=sqrt%28%284-0%29%5E2%2B%286-9%29%5E2%29%29
D%5B2%5D=sqrt%28%284-%28-4%29%29%5E2%2B%286-%28-9%29%29%5E2%29%29
D%5B3%5D=sqrt%28%280-%28-4%29%29%5E2%2B%289-%28-9%29%29%5E2%29%29
So then,
P=D%5B1%5D%2BD%5B2%5D%2BD%5B3%5D