SOLUTION: A triangle has vertices D(-5,4), E(3,1) and F(2,-6). Find the area of the triangle. - Using Linear Systems. help would be greatly appreciated.

Algebra ->  Algebra  -> Systems-of-equations -> SOLUTION: A triangle has vertices D(-5,4), E(3,1) and F(2,-6). Find the area of the triangle. - Using Linear Systems. help would be greatly appreciated.      Log On

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Question 144275: A triangle has vertices D(-5,4), E(3,1) and F(2,-6). Find the area of the triangle.
- Using Linear Systems.
help would be greatly appreciated.
Answer by Alan3354(21608) About Me  (Show Source):
You can put this solution on YOUR website!
Using vectors and determinants, I get an area of 29.5 square units.
I don't know what "use linear systems" means.