如图,
是
的角平分线,点B在射线
上,
是线段
的中垂线交
于E,过点E作
的垂线交
于点F.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2ef38925946da1145a68651da67da9.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bab53e0cb6e6ec13764e326b98f26b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa0d67a3ab790f79a749bb52e23d2af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2ef38925946da1145a68651da67da9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/13/b6d2f15a-1810-41ef-b8ce-3ce50b80068a.png?resizew=140)
2023八年级上·全国·专题练习 查看更多[1]
(已下线)第01讲 轴对称-【帮课堂】2023-2024学年八年级数学上册同步学与练(人教版)
更新时间:2023-10-19 11:31:48
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【推荐1】如图,正方形
中,点E在
上,
,
,点F为
的中点,点G在
上,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c69a9feb14d4b9ccba6ae42837fd73.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110458927f3f396a5bc27ea4a3b1a3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c69a9feb14d4b9ccba6ae42837fd73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/53274c8c-2eb2-4622-89da-33fc645bace5.png?resizew=142)
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【推荐2】如图,在正方形ABCD中,点E在边CD上(不与点C,D重合),AE交对角线BD于点G,
交AE于点G.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/056aa6c9-3eb8-43e3-a688-f68a46c51163.png?resizew=159)
(1)若
,线段AF的长度为___________ .
(2)连接AF,EF,若
,正方形ABCD与
的面积之比___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28bbdea60708bebc259452cc5e07ea5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/17/056aa6c9-3eb8-43e3-a688-f68a46c51163.png?resizew=159)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ecd251b11589358b308ddc44e086d2.png)
(2)连接AF,EF,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac3d3b55561ec5d4acc242ecd1c7f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff39c7aa648afd1080206c8080ff79e.png)
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【推荐1】如图,△ABC的周长是10,BO,CO分别平分∠ABC和∠ACB,OD⊥BC于D,且OD=3,则△ABC的面积是 ___ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/86bc1948-2952-4877-80fc-02a5e6da81a8.png?resizew=154)
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【推荐2】如图,射线
平分
,
,
于点
,
,
,则
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
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【推荐1】如图,已知:在等腰△ABC中,AB=AC,∠BAC=120°,AD⊥BC于点D,点P是BA延长线上一点,点O是线段AD上一点,OP=OC,下面的结论:①∠APO=∠ACO;②∠APO+∠PCO=90°;③PC=PO;④AO+AP=AC,其中正确的个数有_____________ .(填上所有正确结论的序号)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/c0a4377e-81ec-4427-af33-8a98678c4937.png?resizew=188)
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【推荐1】如图,在△ABC中,∠BAC=45°,BD⊥AC于点D,AE平分∠BAC,且AE⊥BC于点E,与BD相交于点G,H是AB边的中点,连接DH与AE相交于点F.下列结论:①AG=BC;②DG=BG;③∠GBE=22.5°;④BE<AF.其中正确结论有______ (填写序号).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/769680d1-359d-4ba0-8197-a455a7ff839e.png?resizew=200)
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【推荐2】如图,已知
,
,将边
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的垂直平分线上的点E时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c44345de7d1f37b48def25db8c5e2b.png)
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