Math, asked by suhailnasarI918, 1 year ago

Two concentric circles are such that a chord of the larger circle acts as a tangent to the smaller circle. The length of the chord is 12 cm and the radius of the smaller circle is 4 cm. What is the radius of the larger circle?

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Answered by hemant66

5

now use Pythagoras theorem in triangle ODB and get the answer of OB

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