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10th Class Mathematics Coordinate Geometry Question Bank Co-ordinate Geometry

  • question_answer
    The area of the triangle with vertices at \[(a,b+c,)\text{ (}b,c+a)\] and \[(c,a+b)\] is

    A)  \[0\] 

    B)  \[a+b+c\]           

    C)  \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}\]         

    D)  \[1\]

    Correct Answer: A

    Solution :

    (a): The three points will be collinear. Find area of \[\Delta \] using co-ordinate geometry.                                 


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