1.

Which among the following can be the vertices of an equilateral triangle?

A. (2, 3), (5, 4), (7, 8)
B. (3, - 6), (5,-9), (6, - 12)
C. (3,-3), (-3, 3), \[(-3\sqrt{3},-3\sqrt{3)}\]
D. All the above
E. None of these
Answer» D. All the above


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