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CBSE Notes 2011-2012

C (O, r1) and C (O, r2) are two concentric circles with r1 > r2. AB is a chord of C (O, r1) touching...

Multiple choice question

C (O, r1) and C (O, r2) are two concentric circles with r1 > r2. AB is a chord of C (O, r1) touching C (O, r2) at C then

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AB = r1

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AB = r2

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AC = BC

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AB = r1 + r2