问一道初3数学圆的证明题已知⊙O,弦AB,CD是直径,AB⊥CD,E是OC的中点,过点E作FG‖AB交⊙O于F,G俩点,求证∠CBF=2∠ABF.所以,希望大家帮个忙``我给分的``
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 05:22:52
![问一道初3数学圆的证明题已知⊙O,弦AB,CD是直径,AB⊥CD,E是OC的中点,过点E作FG‖AB交⊙O于F,G俩点,求证∠CBF=2∠ABF.所以,希望大家帮个忙``我给分的``](/uploads/image/z/5580037-37-7.jpg?t=%E9%97%AE%E4%B8%80%E9%81%93%E5%88%9D3%E6%95%B0%E5%AD%A6%E5%9C%86%E7%9A%84%E8%AF%81%E6%98%8E%E9%A2%98%E5%B7%B2%E7%9F%A5%E2%8A%99O%2C%E5%BC%A6AB%2CCD%E6%98%AF%E7%9B%B4%E5%BE%84%2CAB%E2%8A%A5CD%2CE%E6%98%AFOC%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%BF%87%E7%82%B9E%E4%BD%9CFG%E2%80%96AB%E4%BA%A4%E2%8A%99O%E4%BA%8EF%2CG%E4%BF%A9%E7%82%B9%2C%E6%B1%82%E8%AF%81%E2%88%A0CBF%3D2%E2%88%A0ABF.%E6%89%80%E4%BB%A5%2C%E5%B8%8C%E6%9C%9B%E5%A4%A7%E5%AE%B6%E5%B8%AE%E4%B8%AA%E5%BF%99%60%60%E6%88%91%E7%BB%99%E5%88%86%E7%9A%84%60%60)
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