# SOLUTION: verify the area of a triangle abc a=-2,11 b=5,7 c=1,0 for some reason when i plug it in i get the wrong answer what is the area?

Algebra ->  Algebra  -> Coordinate-system -> SOLUTION: verify the area of a triangle abc a=-2,11 b=5,7 c=1,0 for some reason when i plug it in i get the wrong answer what is the area?      Log On

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 Click here to see ALL problems on Coordinate-system Question 626518: verify the area of a triangle abc a=-2,11 b=5,7 c=1,0 for some reason when i plug it in i get the wrong answer what is the area?Answer by ewatrrr(10682)   (Show Source): You can put this solution on YOUR website! ``` Hi, Line ab (-2,11) ( 5, 7) m = -4/7 line bc (5,7) (1,0) m = 7/4 triangle abc is a right triangle as ab is perpendicular to bc (-2,11) ( 5, 7) (5,7) (1,0) A = ```