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TR-MO-R1 2018 Problem 13

    Bir ABCABC üçgeninde ∣AB∣=∣AC∣=2,∣BC∣=2|AB| = |AC| = 2, |BC| = \sqrt{2} dir. [BC][BC] nin orta noktası DD, [AC][AC] nin orta noktası ise EE dir. ABCABC nin çevrel çemberi üzerinde ABAB doğrusuna göre CC ile farklı tarafta olan ve ∣PC∣2=∣PD∣2+∣PE∣2|PC|^2 = |PD|^2 + |PE|^2 eşitliğini sağlayan bir PP noktası alınıyor. ∣PA∣+∣PB∣|PA| + |PB| kaçtır?

    a) 1+21+\sqrt{2} b) 1+31+\sqrt{3} c) 222\sqrt{2} d) 232\sqrt{3} e) 33

    Official text Turkish Mathematical Olympiad, first round 2018 official paper, page 6. Quoted with source.

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