The radius of two concentric circles are...

The radius of two concentric circles are 9 cm and 15 cm. If the chord of the greater circle be a tangent to the smaller circle, then the length of that chord is

A

24 cm

B

12 cm

C

30 cm

D

18 cm

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The correct Answer is:

A

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LUCENT PUBLICATION-CIRCLE AND ITS TANGENT LINES-EXERCISE 8A

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