如图,AB为圆O的直径,弦CD⊥AB于点E.(1)当AB=10,CD=6时,求OE的长;(2)∠OCD的平分线交圆O于点P,当点C在上半圆(不包括A、B点)上移动时,对于点P,下面三个结论:①到CD的距离保持不变;②平分
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![如图,AB为圆O的直径,弦CD⊥AB于点E.(1)当AB=10,CD=6时,求OE的长;(2)∠OCD的平分线交圆O于点P,当点C在上半圆(不包括A、B点)上移动时,对于点P,下面三个结论:①到CD的距离保持不变;②平分](/uploads/image/z/548403-51-3.jpg?t=%E5%A6%82%E5%9B%BE%2CAB%E4%B8%BA%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84%2C%E5%BC%A6CD%E2%8A%A5AB%E4%BA%8E%E7%82%B9E.%EF%BC%881%EF%BC%89%E5%BD%93AB%3D10%2CCD%3D6%E6%97%B6%2C%E6%B1%82OE%E7%9A%84%E9%95%BF%EF%BC%9B%EF%BC%882%EF%BC%89%E2%88%A0OCD%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%E4%BA%A4%E5%9C%86O%E4%BA%8E%E7%82%B9P%2C%E5%BD%93%E7%82%B9C%E5%9C%A8%E4%B8%8A%E5%8D%8A%E5%9C%86%EF%BC%88%E4%B8%8D%E5%8C%85%E6%8B%ACA%E3%80%81B%E7%82%B9%EF%BC%89%E4%B8%8A%E7%A7%BB%E5%8A%A8%E6%97%B6%2C%E5%AF%B9%E4%BA%8E%E7%82%B9P%2C%E4%B8%8B%E9%9D%A2%E4%B8%89%E4%B8%AA%E7%BB%93%E8%AE%BA%EF%BC%9A%E2%91%A0%E5%88%B0CD%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%BF%9D%E6%8C%81%E4%B8%8D%E5%8F%98%EF%BC%9B%E2%91%A1%E5%B9%B3%E5%88%86)
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