三角形ABC是直角三角形,角ABC是90度,以AB为直径的 园O交AC于E,点D是BC边的中点,连接DE证明DE与园O相切
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![三角形ABC是直角三角形,角ABC是90度,以AB为直径的 园O交AC于E,点D是BC边的中点,连接DE证明DE与园O相切](/uploads/image/z/5339960-8-0.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E6%98%AF%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%2C%E8%A7%92ABC%E6%98%AF90%E5%BA%A6%2C%E4%BB%A5AB%E4%B8%BA%E7%9B%B4%E5%BE%84%E7%9A%84+%E5%9B%ADO%E4%BA%A4AC%E4%BA%8EE%2C%E7%82%B9D%E6%98%AFBC%E8%BE%B9%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%BF%9E%E6%8E%A5DE%E8%AF%81%E6%98%8EDE%E4%B8%8E%E5%9B%ADO%E7%9B%B8%E5%88%87)
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