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If the equation of base of an equilatera...

If the equation of base of an equilateral triangle is `2x - y=1 ` and the vertex is `(-1, 2), ` then the length of the side of the triangle is

A

1) `sqrt(3//2)`

B

2) `sqrt2`

C

3) `sqrt(2//3)`

D

4) None of these

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The correct Answer is:
C
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