if AB is a chord of the circle O with radius r , the five circles 01 to 05 are each tangent to each other, to the chord AB, and to circle O,and if r1=r5,r2=r4,4*r*3=r.

find r1 in terms of r3

The answer is r1=4/9 r3. this is the right answer.the one obtained by clicking is wrong.this is basically a proof

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