Question

Ist circle with radius r1 and another circle with radius r2 are two concentric circles with r1 > r2 AB is a chord of Ist circle touching 2nd circle with radius r2 at C then
AB = r1
AB = r2
AC = BC
AB = r1 + r2​

Answer 1

Answer:

AB=r¹

Step-by-step explanation:

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Answer 2

Answer:

they are concarent triangles so AC =BC