topscore QR question

[omgdats]

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Hi, i know how to do this problem and the explanation isn't very clear. #14 of topscore exam 2 for QR.

In a 2D coordinate system, point A= (3,-6), point B=(1,1), point C=(7,6). Find the area of the triangle ABC.

Thanks!

 

[Streetwolf]

http://forums.studentdoctor.net/showthread.php?t=643734
http://forums.studentdoctor.net/showthread.php?t=576340
http://forums.studentdoctor.net/showthread.php?t=553984

I think I posted in all 3. Guess I'll just link them from now on.

USE THE SEARCH FEATURE! That's how I got these links.