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Two concentric circles have radii 5 cm and 3 cm. Find the length of the chord of the larger circle that touches the smaller circle.

Class 10Tangent Lengths and IncirclesGeometry
  • A4 cm
  • B8 cm
  • C16 cm
  • D

Step-by-Step Solution

OP ⊥ AB at the point of contact P and bisects the chord. AP = cm, so AB = 8 cm. 4 cm is only half the chord.
Answer: B) 8 cm

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