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TR-MO-R1 2025 Problem 25

    Bir ABCDABCD dikdörtgeninde ∣AB∣>∣BC∣|AB| > |BC| olsun. DD noktasından geçen ve ABAB doğrusuna BB noktasında teğet olan çember ADAD doğrusunu ikinci kez EE noktasında kesiyor. BEBE ve CDCD doğrularının kesişim noktası FF olmak üzere, ∣FC∣∣FD∣=97\dfrac{|FC|}{|FD|} = \dfrac{9}{7} ise, ∣EC∣∣AF∣\dfrac{|EC|}{|AF|} kaçtır?

    a) 79\dfrac{7}{9} b) 11 c) 54\dfrac{5}{4} d) 43\dfrac{4}{3} e) 32\dfrac{3}{2}

    Dataset text TÜBİTAK olympiad set, Matematik_2025_1.Asama_25. Quoted with source.

    A model read this text from the scan of the paper by OCR, with vision/claude@2.1.318 (claude-opus-5-5). No person has checked it against the paper yet.

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