SOLUTION: Find the perimeter of a triangle with points A(1,2), B(1,8)$, and C(5,5) on a Cartesian coordinate plane.

Algebra ->  Coordinate-system -> SOLUTION: Find the perimeter of a triangle with points A(1,2), B(1,8)$, and C(5,5) on a Cartesian coordinate plane.      Log On


   



Question 1068369: Find the perimeter of a triangle with points A(1,2), B(1,8)$, and C(5,5) on a Cartesian coordinate plane.
Answer by ikleyn(52855) About Me  (Show Source):
You can put this solution on YOUR website!
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Find the length of each side SEPARATELY.

Then sum up the three lengths.

The formula for the length of each side is L = sqrt%28%28x%5B2%5D-x%5B1%5D%29%5E2+%2B+%28y%5B2%5D-y%5B1%5D%29%5E2%29.