如图,在平行四边形
中,
的平分线交
于点E,交
的延长线于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/03600716-f23f-473d-8600-ae8ff268a9f3.png?resizew=160)
(1)求证:
;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/03600716-f23f-473d-8600-ae8ff268a9f3.png?resizew=160)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3214c853ea2268ef6c434fb28f0298d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/718fcb0617510e0f59110e57efbcab69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
更新时间:2023-04-01 09:34:47
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(2)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8689d619c2508c9000531fc1b8f1f21c.png)
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【推荐2】如图,在
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【推荐2】如图,在平行四边形
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;
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c85087a55a1fbbaa30f42d330402254.png)
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