1.

PQR is an equitateral triangle such that the vertices Q and R lie on the line x+y=sqrt2 and x+y=7sqrt2 respectively. If P lie between the two lines at a distance 4 from one them then the length of side of equilateral triangle PQR is (in units)

Answer»

8
`(4sqrt7)/SQRT3`
`sqrt85/3`
`(4sqrt5)/sqrt3`

ANSWER :B


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