The equation of the base of an equilater...

The equation of the base of an equilateral triangle `A B C` is `x+y=2` and the vertex is `(2,-1)` . The area of the triangle `A B C` is: `(sqrt(2))/6` (b) `(sqrt(3))/6` (c) `(sqrt(3))/8` (d) None of these

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