CelestialMxxn
CelestialMxxn CelestialMxxn
  • 27-09-2021
  • Mathematics
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Two concentric circles are of radii 5 cm and 3 cm. Determine the length of the chord of the larger circle which touches the smaller circle.

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MilkyChxco
MilkyChxco MilkyChxco
  • 27-09-2021

Answer: 4

Step-by-step explanation:

In triangle OCB,

OB2  =  OC2 + BC2

52  =  32 + BC2

BC2  =  25 - 9

BC2  =  16

BC  =  4

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