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Two tangents to the circle x^2 +y^2=4 at...

Two tangents to the circle `x^2 +y^2=4` at the points `A` and `B` meet at `P(-4,0)`, The area of the quadrilateral `PAOB`, where `O` is the origin, is

A

4

B

`6 sqrt(2)`

C

`4 sqrt(3)`

D

None of these

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The correct Answer is:
c
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