The vertex of an equilateral triangle is (2,-1) and the equation of its base in\[x+2y=1\]. The length of its sides is [UPSEAT 2003]

The vertex of an equilateral triangle is (2,-1) and the equation of it

1.	The vertex of an equilateral triangle is (2,-1) and the equation of its base in\[x+2y=1\]. The length of its sides is [UPSEAT 2003]
A.	\[4/\sqrt{15}\]
B.	\[2/\sqrt{15}\]
C.	\[4/3\sqrt{3}\]
D.	\[1/\sqrt{5}\]
Answer» C. \[4/3\sqrt{3}\]

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The vertex of an equilateral triangle is (2,-1) and the equation of its base in\[x+2y=1\]. The length of its sides is [UPSEAT 2003]

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