如图,在
中,
,F是
的中点,作
于E,连接
、
,下列结论不成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b929269c53a44907dba8ee298a0a522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f913298f0fae9f55377a8deab9f099dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2023-04-26 14:28:20
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图,四边形中ABCD中,
,
,BD为
的平分线,
,
.E,F分别是BD,AC的中点,则EF的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/fdbdceae-eb5b-4a9c-9b15-8a43a647684f.png?resizew=191)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/26/fdbdceae-eb5b-4a9c-9b15-8a43a647684f.png?resizew=191)
A.1 | B.1.5 | C.2 | D.2.5 |
您最近一年使用:0次
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【推荐2】如图,线段
在第二象限,点
,点
.将线段
绕点
顺时针旋转
得到线段
.那么点
的对应点
的坐标是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/54dff99f-4951-479c-9c77-bba1b0a87266.png?resizew=213)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d454c14fd589fcfbe6aec2797df5894c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b85c8d6c5752f12ce561b94eb475bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/54dff99f-4951-479c-9c77-bba1b0a87266.png?resizew=213)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】如图,在
中,
,
、
是
内两点,
平分
,
,若
,
,则
的长度是( ).
![](https://img.xkw.com/dksih/QBM/2018/2/28/1891972286357504/1895818529251328/STEM/3346425c5d9242fca31bbbad6e46be7b.png?resizew=154)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa14c146ac76fd05558c089cb12f787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620fd368efb51a5ae90c0f3e276704d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2018/2/28/1891972286357504/1895818529251328/STEM/3346425c5d9242fca31bbbad6e46be7b.png?resizew=154)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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(0.65)
【推荐2】如图,
为
的角平分线,且
为
延长线上的一点,
,过点E作
,点F为垂足.下列结论:①
;②
;③
;④
.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/ba4cc9c9-d4ec-4174-a4c7-48f9a1bcf5d9.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d263c73d901e86d4ed9f0504aaa96744.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a26c2c53046cbfe83f84f5393373589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190d88434c0f76751426a97a444616c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cde90176f5fd10626820d8fc2ce64cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2292702ebc75724359ed36184438db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8b0a3664e37e113d50514c48402fd3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/ba4cc9c9-d4ec-4174-a4c7-48f9a1bcf5d9.png?resizew=132)
A.①②③ | B.①③④ | C.①②④ | D.①②③④ |
您最近一年使用:0次
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(0.65)
【推荐1】如图,已知平行四边形
,
,依下列步骤作图,并保留作图痕迹:
步骤1:以
为圆心,
长为半径画弧①,分别交
,
于点
,
;
步骤2:以
为圆心,以
长为半径画弧②,交
于点
;
步骤3:以
为圆心,以
长为半径画弧③,弧②和弧③交于点
,过
作射线,交
于点
.则下列叙述不正确 的是:( )
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584235521802240/2585518395432960/STEM/dc994121f608484ebfac5439b331d93e.png?resizew=239)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d075d58b3f1923be4ef1699b6fe4e816.png)
步骤1:以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
步骤2:以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
步骤3:以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584235521802240/2585518395432960/STEM/dc994121f608484ebfac5439b331d93e.png?resizew=239)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,
中,对角线
,
相交于点
,下列条件:(1)
;(2)
;(3)
,其中能判定
是菱形的条件有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3308c1ee6df00d230f84b3e05f072a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fca3734de79f7f50b552ef62b29dc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/27/dd901636-02ff-491d-b64f-b865585bdeaf.png?resizew=170)
A.0个 | B.1个 | C.2个 | D.3个 |
您最近一年使用:0次
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(0.65)
名校
【推荐1】如图,在
中,D、E分别为
的中点,点F在
上,且
,若
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2023/6/1/3250144416210944/3250219787190272/STEM/608fe83886f648158fbb3a0eb3e8cac3.png?resizew=205)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd3724385f98a2415ba27f8df4c31d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c507610f462120218e2cd1894c957eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aedb13a5a5de2c26dc8776003efcadf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/2023/6/1/3250144416210944/3250219787190272/STEM/608fe83886f648158fbb3a0eb3e8cac3.png?resizew=205)
A.1.5 | B.2 | C.2.5 | D.3 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图,在
中,
,点
是斜边
的中点,
平分
,
,则
的长是( )
![](https://img.xkw.com/dksih/QBM/2022/4/8/2958860541411328/2992739381362688/STEM/dc07b42a-5737-4c22-8500-149a76697b8c.png?resizew=208)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefc12c61c95d8e36846a6aac1c9105b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8df8666e352d1b453da7ef6c5331dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2022/4/8/2958860541411328/2992739381362688/STEM/dc07b42a-5737-4c22-8500-149a76697b8c.png?resizew=208)
A.2 | B.4 | C.6 | D.8 |
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