В четырёхугольнике ABCD ∠A = 90⁰, ∠B = 91⁰. Известно, что BC = AD. Пусть серединные перпендикуляры к отрезкам AB и CD пересекаются в точке Х. (!) ∠AXB = ?
В четырёхугольнике ABCD ∠A = 90⁰, ∠B = 91⁰. Известно, что BC = AD. Пусть серединные перпендикуляры к отрезкам AB и CD пересекаются в точке Х. (!) ∠AXB = ?
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