如图,已知点B,E,C,F在同一条直线上,
,
,
.
(1)求证:
;
(2)若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/958b45552f9fa1a60016483bd8246be9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/75ffa18b-3460-47e4-ad1c-73a28ca343ff.png?resizew=140)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca10806fc8c3c3efd6859f526b76900.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bef89ac0dd5ae192cd9c7222d5041b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1612dbaf3d93e619356063b3f569ae4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
22-23七年级下·四川雅安·期中 查看更多[5]
四川省雅安市汉源县汉源县第二中学2022-2023学年七年级下学期期中数学试题(已下线)第12单元01讲(已下线)专题09 期中押题预测卷02-【好题汇编】备战2023-2024学年八年级数学上学期期中真题分类汇编(人教版)湖北省武汉市汉阳区第三寄宿中学2023-2024年八年级上学期月考数学试题四川省泸州市 叙永县属初中教育共同体 2023-2024学年八年级上学期第一次联合考试(12月月考)数学试题
更新时间:2023-07-15 15:57:19
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