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A circle with centre at (2, 4) is such t...

A circle with centre at (2, 4) is such that the line x+y+2 =0 cuts a chord of length 6. The radius of the circle is

A

`sqrt(41)` cm

B

`sqrt(11)` cm

C

`sqrt(21)` cm

D

`sqrt(31)` cm

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The correct Answer is:
A
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