如图,在等边三角形
中,
为
边的中点,
为
边的延长线上一点,
,
于点
.下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/2019/10/22/2317457480982528/2318723548184576/STEM/751162719cc6418f8cd01d583f0dad72.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1d267eeb09c171c3e847f0597be31c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07789d6a8259ac89144caa816aaaf47d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2019/10/22/2317457480982528/2318723548184576/STEM/751162719cc6418f8cd01d583f0dad72.png?resizew=160)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
更新时间:2019-10-30 02:03:04
|
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【推荐1】如图,正方形
与正方形
(边长不等),B. C. F三点共线,连接
交
于M,连接
交
、
、
分别于N、P、Q,下面结论正确的有( )
①
;②
;③
;④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70687738f3eaa8e436580973880cfa5.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/30/154e3d99-6f5b-4629-81ca-21eca64aec6c.png?resizew=304)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1596f7c0d0bab4e7e586d705d323e0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de96fc40d4e672baba4fd38defe23a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79785fcdc8679cf0e47a75ea0da12f72.png)
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A.4个 | B.3个 | C.2个 | D.1个 |
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【推荐2】如图,在△OAB和△OCD中,OA>OC,OA=OB,OC=OD,且B,O,C在一条直线上,∠AOB=∠COD=40°,连接AC,BD交于点M,连接OM.下列结论:①△AOC≌△BOD;②△AOB∽△COD;③∠BMA=40°;④MO平分∠CMB.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/2021/5/29/2731324492161024/2731465356664832/STEM/937a9119268d469dbcd85c5d2e21870e.png?resizew=149)
![](https://img.xkw.com/dksih/QBM/2021/5/29/2731324492161024/2731465356664832/STEM/937a9119268d469dbcd85c5d2e21870e.png?resizew=149)
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名校
【推荐1】如图,△ABC中,∠A=60°,以AB为直径作⊙O,分别交AC、BC于点D、E,若AD=CD,则∠AOE的度数是( )
![](https://img.xkw.com/dksih/QBM/2022/4/20/2962335084331008/2977671160029184/STEM/9d019325-b6af-4bc9-8576-bd71ba90a05d.png?resizew=172)
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A.120° | B.100° | C.80° | D.60° |
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名校
【推荐2】在
中,三边分别为
、
、
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为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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A.等腰三角形 | B.不等边三角形 | C.等边三角形 | D.无法判断 |
您最近一年使用:0次