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      Question

      A tangent from point P touches a circle at T. If OP = 13

      cm and radius = 5 cm, find PT.
      A 18 cm Correct Answer Incorrect Answer
      B 12 cm Correct Answer Incorrect Answer
      C 20 cm Correct Answer Incorrect Answer
      D 25 cm Correct Answer Incorrect Answer

      Solution

      ATQ, Triangle OPT is right-angled at T PT² = OP² - OT² = 13² - 5² = 169 - 25 = 144 → PT = √144 = 12 cm

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