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The points A(2,\ 0),\ \ B(9,\ 1),\ \ C(1...

The points `A(2,\ 0),\ \ B(9,\ 1),\ \ C(11 ,\ 6)` and `D(4,\ 4)` are the vertices of a quadrilateral `A B C D` . Determine whether `A B C D` is a rhombus or not.

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RD SHARMA-COORDINATE GEOMETRY-All Questions
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