如图,在四边形ABCD中,AB=AD,∠ABC=∠ADC,说明CB=CD的理由http://wenwen.soso.com/z/q132364161.htm?w=%C8%E7%CD%BC%A3%AC%D4%DA%CB%C4%B1%DF%D0%CEABCD%D6%D0%A3%ACAB%3DAD%A3%AC%A1%CFABC%3D%A1%CFADC%A3%AC%CB%B5%C3%F7CB%3DCD%B5%C4%C0%ED%D3%C9&ch=w.
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 19:12:06
![如图,在四边形ABCD中,AB=AD,∠ABC=∠ADC,说明CB=CD的理由http://wenwen.soso.com/z/q132364161.htm?w=%C8%E7%CD%BC%A3%AC%D4%DA%CB%C4%B1%DF%D0%CEABCD%D6%D0%A3%ACAB%3DAD%A3%AC%A1%CFABC%3D%A1%CFADC%A3%AC%CB%B5%C3%F7CB%3DCD%B5%C4%C0%ED%D3%C9&ch=w.](/uploads/image/z/1692330-42-0.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CAB%3DAD%2C%E2%88%A0ABC%3D%E2%88%A0ADC%2C%E8%AF%B4%E6%98%8ECB%3DCD%E7%9A%84%E7%90%86%E7%94%B1http%3A%2F%2Fwenwen.soso.com%2Fz%2Fq132364161.htm%3Fw%3D%25C8%25E7%25CD%25BC%25A3%25AC%25D4%25DA%25CB%25C4%25B1%25DF%25D0%25CEABCD%25D6%25D0%25A3%25ACAB%253DAD%25A3%25AC%25A1%25CFABC%253D%25A1%25CFADC%25A3%25AC%25CB%25B5%25C3%25F7CB%253DCD%25B5%25C4%25C0%25ED%25D3%25C9%26ch%3Dw.)
如图,在四边形ABCD中,AB=AD,∠ABC=∠ADC,说明CB=CD的理由http://wenwen.soso.com/z/q132364161.htm?w=%C8%E7%CD%BC%A3%AC%D4%DA%CB%C4%B1%DF%D0%CEABCD%D6%D0%A3%ACAB%3DAD%A3%AC%A1%CFABC%3D%A1%CFADC%A3%AC%CB%B5%C3%F7CB%3DCD%B5%C4%C0%ED%D3%C9&ch=w.
如图,在四边形ABCD中,AB=AD,∠ABC=∠ADC,说明CB=CD的理由
http://wenwen.soso.com/z/q132364161.htm?w=%C8%E7%CD%BC%A3%AC%D4%DA%CB%C4%B1%DF%D0%CEABCD%D6%D0%A3%ACAB%3DAD%A3%AC%A1%CFABC%3D%A1%CFADC%A3%AC%CB%B5%C3%F7CB%3DCD%B5%C4%C0%ED%D3%C9&ch=w.xg.tw&as=5&uin=648846217&ch=w.same 图
如图,在四边形ABCD中,AB=AD,∠ABC=∠ADC,说明CB=CD的理由http://wenwen.soso.com/z/q132364161.htm?w=%C8%E7%CD%BC%A3%AC%D4%DA%CB%C4%B1%DF%D0%CEABCD%D6%D0%A3%ACAB%3DAD%A3%AC%A1%CFABC%3D%A1%CFADC%A3%AC%CB%B5%C3%F7CB%3DCD%B5%C4%C0%ED%D3%C9&ch=w.
过A作AO垂直BD,交点O,连接CO,
则安之AO=DO
三角形ABO和ADO全等,
角ABO=角ADO,
角CBO=角CDO,
CB=CD