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find the area of a triangle …

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find the area of a triangle having the points A(1,1,1) , B (1,2,3) and C ( 2,3,1) as its vertices

    • Posted by Hemu Chauhan 8 years ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Rajat Raguvanshi 8 years ago

    Firstly find AB vector and AC vector then find its cross product. And then find its magnitude after that put all the values in formula 1/2 |AB X AC |and u will get the answer

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