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Question

If PC and PD are tangent to the circle from point P and AB is a third tangent at point Q such that AQ = 4 cm and PC = 16 cm, then PA =?


  1. 6 cm

  2. 20 cm

  3. 12 cm

  4. 8 cm

  5. 4 cm


Solution

The correct option is C

12 cm


AQ = AD = 4 cm PD = PC = 16 cm PA = PD -- AD = 12 cm

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