如图所示,在
中,内角
与外角
的平分线相交于点
,
,
交
于
,交
于
,连接
,下列结论:①
;②
;③
垂直平分
;④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d29e7c4d6216690152430b09f9cf0c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1ac3ab8d3ce5e61fd2f89761f80976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9b3ffaa7c0e23c1af5899dd79b60ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d810fd8a909330bb234c17e9f52b6218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f18862da59fdbb55f1b3be0289d6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52603d36121d9454e0a6ee14f4bca802.png)
A.①②④ | B.①③④ | C.②③④ | D.①③ |
23-24八年级上·浙江宁波·期末 查看更多[2]
更新时间:2024-03-04 21:10:48
|
相似题推荐
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适中
(0.65)
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【推荐1】如图,
是
的直径,点
为圆上一点,
,
的平分线交
于点
,
,则
的直径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/25/ec828280-096e-4535-9c0d-5e0da76cef4f.png?resizew=149)
A.3 | B.![]() | C.1 | D.2 |
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【推荐2】如图,AD是△ABC的角平分线,作AD的垂直平分线EF交BC的延长线于点F,连接AF.给出下列结论:
①AF=DF;
②S△ABD:S△ACD=AB:AC;
③∠BAF=∠ACF.
其中正确的结论为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/2d700541-277a-46b8-a93c-e75452d8906c.png?resizew=164)
①AF=DF;
②S△ABD:S△ACD=AB:AC;
③∠BAF=∠ACF.
其中正确的结论为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/16/2d700541-277a-46b8-a93c-e75452d8906c.png?resizew=164)
A.①③ | B.①② | C.①②③ | D.②③ |
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【推荐1】如图,在△ABC中,∠B=30°,BC的垂直平分线交AB于点E,垂足为D,CE平分∠ACB,若BE=4,则AC的长为( )
![](https://img.xkw.com/dksih/QBM/2019/6/16/2226801090535424/2228305931304960/STEM/71176b21f50c4b2aa07272be677f56a4.png?resizew=183)
![](https://img.xkw.com/dksih/QBM/2019/6/16/2226801090535424/2228305931304960/STEM/71176b21f50c4b2aa07272be677f56a4.png?resizew=183)
A.2 | B.2![]() | C.2![]() | D.![]() |
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【推荐2】如图,在
中,
,
,以点A为圆心,以
的长为半径作弧交
于点D,连接
,再分别以点B,D为圆心,大于
的长为半径作弧,两弧交于点P,作射线
交
于点E,连接
,则下列结论中不正确的是( )
![](https://img.xkw.com/dksih/QBM/2023/6/30/3270730327744512/3279134861508608/STEM/259581a65cd6453c81fd7ec9e90378b1.png?resizew=164)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81613520ab5a478f0b2616a9bcb79d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2023/6/30/3270730327744512/3279134861508608/STEM/259581a65cd6453c81fd7ec9e90378b1.png?resizew=164)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() |
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【推荐1】如图,在
中,
,
是
的中点,下列结论不一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/13/2aac4d90-8baf-4265-ab54-1509eb43466a.png?resizew=172)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,等腰直角
中,
,
于点
,
的平分线分别交
、
于
、
两点,
为
的中点,延长
交
于点
,连接
.下列结论:①
;②
;③
;④
.正确的有( )
![](https://img.xkw.com/dksih/QBM/2021/1/8/2638677272559616/2678681135374336/STEM/f4713665-4f64-4857-b370-8c276c7dc94c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d8e33929752b1cb4dd36ee9b98b45d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af29505e20d3f1a939cf44ca48b0f9c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4656b6fb5fd2384bee6227ba09986153.png)
![](https://img.xkw.com/dksih/QBM/2021/1/8/2638677272559616/2678681135374336/STEM/f4713665-4f64-4857-b370-8c276c7dc94c.png)
A.①② | B.①②③ | C.①②④ | D.①②③④ |
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