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?

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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(24785)   (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 = 





 

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