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The length of the tangent drawn to a circle of radius 5 cm from a point 13 cm from its centre is:

Competition practiceGeometry
  • A8 cm
  • B10 cm
  • C12 cm
  • D18 cm

Step-by-Step Solution

The tangent is perpendicular to the radius at the point of contact, so length = √ √(169 − 25) = √144 = 12 cm.
Answer: C) 12 cm

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