The equation of the base of an equilateral triangle is $x + y = 2$ and the vertex is $(2, -1)$. The length of the side of the triangle is
The equation of the base of an equilateral triangle is $x + y = 2$ and the vertex is $(2, -1)$. The length of the side of the triangle is
- [IIT 1973]
- [IIT 1983]
- A
$\sqrt {3/2} $
- B
$\sqrt 2 $
- C
$\sqrt {2/3} $
- D
None of these
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