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[" (a) "2sqrt(2)cm" (b) "2cm" .F(c) "2sq...

[" (a) "2sqrt(2)cm" (b) "2cm" .F(c) "2sqrt(3)cm" .With centre "O" and radius "9cm" ."],[" AP and "PQ" are tangents drawn from a point "A" to a circle with centre "O" and radius "9cm" ."],[" If "OA=15cm," then "AP+AQ=quad " (c) "24cm" .(d) "36cm]

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