# Show that the poi

Given: The 3 points are A(1, 1), B(-1, -1) and C(-√3, √3).

AB  = 2√2 units …..(1)

BC  = 2√2 units …..(2)

AC  = 2√2 units …..(3)

From equations 1, 2 and 3, we have

AB = BC = AC = 2√2 units.

Therefore, Δ ABC is an equilateral triangle each of whose sides is 2√2 units.

Hence, proved.

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