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TR-MO-R1 2020 Problem 21

    ∣AB∣=25|AB| = 25 ve ∣AC∣=40|AC| = 40 olan bir ABCABC üçgeninin [BC][BC] kenarı üzerinde alınan bir DD noktası için ∣BD∣=15|BD| = 15 ve ∣DC∣=24|DC| = 24 tür. Buna göre ABDABD ve ACDACD üçgenlerinin diklik merkezleri arasındaki uzaklık kaçtır?

    a) 1010 b) 1111 c) 1212 d) 1313 e) 1414

    Official text Turkish Mathematical Olympiad, first round 2020 official paper, page 12. Quoted with source.

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