The incentre of a triangle with vertices (7, 1) (-1, 5) and \[(3+2\sqrt{3},\,3+4\sqrt{3})\] is [J & K 2005]

\[\left( 1+\frac{2}{3\sqrt{3}},\,1+\frac{4}{3\sqrt{3}} \right)\]

\[\left( 3+\frac{2}{\sqrt{3}},\,3+\frac{4}{\sqrt{3}} \right)\]

The incentre of a triangle with vertices (7, 1) (-1, 5) and \[(3+2\sqr

1.	The incentre of a triangle with vertices (7, 1) (-1, 5) and \[(3+2\sqrt{3},\,3+4\sqrt{3})\] is [J & K 2005]
A.	\[\left( 3+\frac{2}{\sqrt{3}},\,3+\frac{4}{\sqrt{3}} \right)\]
B.	\[\left( 1+\frac{2}{3\sqrt{3}},\,1+\frac{4}{3\sqrt{3}} \right)\]
C.	(7, 1)
D.	None of these
Answer» B. \[\left( 1+\frac{2}{3\sqrt{3}},\,1+\frac{4}{3\sqrt{3}} \right)\]

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The incentre of a triangle with vertices (7, 1) (-1, 5) and \[(3+2\sqrt{3},\,3+4\sqrt{3})\] is [J & K 2005]

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