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 [Kerala (Engg.) 2005]

If the equation of base of an equilateral triangle is \[2x-y=1\] and t

1.	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 [Kerala (Engg.) 2005]
A.	\[\sqrt{\frac{20}{3}}\]
B.	\[\frac{2}{\sqrt{15}}\]
C.	\[\sqrt{\frac{8}{15}}\]
D.	\[\sqrt{\frac{15}{2}}\]
Answer» B. \[\frac{2}{\sqrt{15}}\]

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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 [Kerala (Engg.) 2005]

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