4. If a line intersects two concentric circles (circles with the same centre) with centre O at A

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4. If a line intersects two concentric circles (circles with the same centre) with centre O at A, B, C and D, prove that AB = CD (see Fig. 10.25).
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4. If a line intersects two concentric circles (circles with the same centre) with centre O at A, B, C and D, prove that AB = CD (see Fig. 10.25). 4. If a line intersects two concentric circles (circles with the same centre) with centre O at A B C and D prove that AB [...]
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Tags: 4. If a line intersects two concentric circles (circles with the same centre) with centre O at A , B , C and D , prove that AB = CD (see Fig. 10.25). ,