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OpenStudy (anonymous):
determine the area of ABC with vertices A(-4,1,1) B(-2,0,3) C(-7,5,8)
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OpenStudy (dan815):
let B^=B-A C^=C-a these are 2 vectors The magnitude of the crossproduct gives us their area
OpenStudy (anonymous):
im doing tht problem on flvs rite now thts weired
OpenStudy (anonymous):
could u show me
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