如下图,四边形ABCD中,AD//BC,E是线段DC的中点,AE是∠BAD的平分线. 求证:BE是∠ABC的平分线file://D:\My Documents\My Pictures\f11f3a29a5f5f8af99250a35.jpg
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![如下图,四边形ABCD中,AD//BC,E是线段DC的中点,AE是∠BAD的平分线. 求证:BE是∠ABC的平分线file://D:\My Documents\My Pictures\f11f3a29a5f5f8af99250a35.jpg](/uploads/image/z/1352652-60-2.jpg?t=%E5%A6%82%E4%B8%8B%E5%9B%BE%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CAD%2F%2FBC%2CE%E6%98%AF%E7%BA%BF%E6%AE%B5DC%E7%9A%84%E4%B8%AD%E7%82%B9%2CAE%E6%98%AF%E2%88%A0BAD%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF.+%E6%B1%82%E8%AF%81%EF%BC%9ABE%E6%98%AF%E2%88%A0ABC%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BFfile%3A%2F%2FD%3A%5CMy+Documents%5CMy+Pictures%5Cf11f3a29a5f5f8af99250a35.jpg)
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