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From the point P(16,7), tangents PQ and ...

From the point `P(16,7)`, tangents PQ and PR are drawn to the circle `x^2 +y^2 -2x-4y- 20=0` If C is the centre of the circle, then area of quadrilateral PQCR is

A

450 sq unit

B

15 sq unit

C

50 sq unit

D

75 sq unit

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