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In a Delta ABC the equation of the side...

In a `Delta ABC ` the equation of the side BC is `2x-y =3` and its circumcentre and orthocentre are `(2,4) and (1,2) ` respectively .
Circumradius of `Delta ABC` is

A

(a)`sqrt(61/5)`

B

(b)`sqrt(51/5)`

C

(c)`sqrt(41/5)`

D

(d)`sqrt(43/5)`

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The correct Answer is:
A
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