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  3. 10th Class
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  5. Coordinate Geometry

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

  • question_answer
    If the coordinates of the points A, B, C and D are (6, 3), (- 3, - 5), (4, - 2) and (a, 3a) respectively and if the ratio of the area of triangles ABC and DBC is \[2:1\], then the value of a is

    A)  \[\frac{-9}{2}\]                        

    B)  \[\frac{9}{2}\]

    C)  \[\frac{-23}{36}\]         

    D)  \[\frac{23}{18}\]

    Correct Answer: C

    Solution :

    (c): Find area of A using co-ordinate geometry                   


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