Q20 of 49 Page 1

Prove that the points A (2, -1), B (3, 4), C (-2, 3) and D (-3, -2) are the vertices of a rhombus ABCD. Is ABCD a square?


Distance between two points is given by,


=


AB =


BC =


CD =


DA =


⸫ All sides are equal and the angle between the sides is not 90°, hence it’s a rhombus.


⸫ No, it’s not a square because the sides are not perpendicular to each other.


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