Plzzzz solve this question no 11
Q.11. If diameters of two concentric circle are and C is length of chord of bigger circle which is tangent to the smaller circle. Prove that .
Kindly refer the similar link for your query.
https://www.meritnation.com/ask-answer/question/if-d1-and-d2-are-the-2-diameters-of-2-concentric-circles/circles/9922314
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https://www.meritnation.com/ask-answer/question/if-d1-and-d2-are-the-2-diameters-of-2-concentric-circles/circles/9922314
Regards