Answers

  • qais
  • Content Quality
2015-12-01T11:28:21+05:30
See, as we know that tangent makes 90° with the radius.
so let us suppose point outside the circle be P
centre of circle be O and makes tangent at T
so ∠OTP = 90°
applying pythagoras theorem,
TP =√((5)²- (3)²)
      =√16
      =4 cm
hence , length of tangent will be 4 cm
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