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Select the correct option from the given alternatives.Let A be the centre `x^2+y^2-2x-4y-20=0`Suppose that the tangents at points `B(1,7)`and `D(4,-2)`on the circle meet at point C then the area of quadrilateral ABCD is…

A

75 sq,units

B

50 sq,units

C

100 sq,units

D

120 sq,units

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