圆部分4)AB是半圆O的直径,点E是半圆上一个动点(点E与点A、B都不重合),点C是BE延长线上的一点,且CD⊥AB,垂足为D,CD与AE交于点H(点H与点E不重合)①求证:△AHD∽△CBD②连接HO,若CD=AB=2,求
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![圆部分4)AB是半圆O的直径,点E是半圆上一个动点(点E与点A、B都不重合),点C是BE延长线上的一点,且CD⊥AB,垂足为D,CD与AE交于点H(点H与点E不重合)①求证:△AHD∽△CBD②连接HO,若CD=AB=2,求](/uploads/image/z/7134850-10-0.jpg?t=%E5%9C%86%E9%83%A8%E5%88%864%EF%BC%89AB%E6%98%AF%E5%8D%8A%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84%2C%E7%82%B9E%E6%98%AF%E5%8D%8A%E5%9C%86%E4%B8%8A%E4%B8%80%E4%B8%AA%E5%8A%A8%E7%82%B9%EF%BC%88%E7%82%B9E%E4%B8%8E%E7%82%B9A%E3%80%81B%E9%83%BD%E4%B8%8D%E9%87%8D%E5%90%88%EF%BC%89%2C%E7%82%B9C%E6%98%AFBE%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%E7%9A%84%E4%B8%80%E7%82%B9%2C%E4%B8%94CD%E2%8A%A5AB%2C%E5%9E%82%E8%B6%B3%E4%B8%BAD%2CCD%E4%B8%8EAE%E4%BA%A4%E4%BA%8E%E7%82%B9H%EF%BC%88%E7%82%B9H%E4%B8%8E%E7%82%B9E%E4%B8%8D%E9%87%8D%E5%90%88%EF%BC%89%E2%91%A0%E6%B1%82%E8%AF%81%EF%BC%9A%E2%96%B3AHD%E2%88%BD%E2%96%B3CBD%E2%91%A1%E8%BF%9E%E6%8E%A5HO%2C%E8%8B%A5CD%EF%BC%9DAB%EF%BC%9D2%2C%E6%B1%82)
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