1 . 如图,
中,
,
的垂直平分线分别交
于点D,E,连接
,则
的大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c5840e0454fdec7d2158072c43b8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9a415bdb7b4e1e35c18a9e53205392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6282292819434a8905a212427613fd85.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/35cfb83c-f8d0-4476-97f7-a0b062a1b212.png?resizew=136)
A.40° | B.50° | C.80° | D.100° |
您最近一年使用:0次
2 . 到三角形三个顶点距离都相等的点是( )
A.三角形的三条角平分线的交点 |
B.三角形的三边垂直平分线的交点 |
C.三角形的三条高线的交点 |
D.三角形的三条中线的交点 |
您最近一年使用:0次
3 . 如图,在
中,
,
,
于点
,
的垂直平分线分别交
,
于点
,若
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/a7b490bb-3432-49ff-bc29-d2893eae6ac7.png?resizew=203)
![](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/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a373959bb9026f8a09845c0b828bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc39144b305c67d44410d41053a1d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/a7b490bb-3432-49ff-bc29-d2893eae6ac7.png?resizew=203)
A.4 | B.6 | C.8 | D.10 |
您最近一年使用:0次
4 . 如图,
中,
,点O是边
垂直平分线的交点,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/7d5af055-7c6a-4676-a339-7d79818c7f87.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98361cbdf0fe01ddbf277493253ef12b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ee72b8942479ea23b5246d83c1609e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/7d5af055-7c6a-4676-a339-7d79818c7f87.png?resizew=144)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 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://img.xkw.com/dksih/QBM/editorImg/2024/3/4/cb952ba0-60c8-4610-867b-ba3b475752ff.png?resizew=232)
其中一定正确的有( )
![](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)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/cb952ba0-60c8-4610-867b-ba3b475752ff.png?resizew=232)
其中一定正确的有( )
A.①②④ | B.①③④ | C.②③④ | D.①③ |
您最近一年使用:0次
6 . 如图,在
中,
,分别以点A和点C为圆心,大于
的长为半径画弧,两弧相交
的两侧于点M,N,作直线
,交
于点D,连接
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2024/1/17/3412936816074752/3445491477864448/STEM/9922485568924c709a9f5851e5921d4a.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a6c43da105505c8528f6f1a84e8a52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93148adbc6e856da9a9d263f485d003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://img.xkw.com/dksih/QBM/2024/1/17/3412936816074752/3445491477864448/STEM/9922485568924c709a9f5851e5921d4a.png?resizew=167)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 如图,
中
,面积是24,
垂直平分
,分别交
于
,
点.若点
为
边的中点,点
为线段
上一动点,则
周长的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/2bcd2ee7-58be-4ba6-8a5e-f6634c7f73f6.png?resizew=179)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acac491282022cf71390ce733e965957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5881068127a39caf319492b4177204f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/2bcd2ee7-58be-4ba6-8a5e-f6634c7f73f6.png?resizew=179)
A.10 | B.11 | C.12 | D.13 |
您最近一年使用:0次
8 . 如图,在
中,
,
,边
的垂直平分线交
于点D.若
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/3faf32a5-fba1-4be3-8d02-fe53934c20fe.png?resizew=161)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54486ba185c2598d90d996821c7e8159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/3faf32a5-fba1-4be3-8d02-fe53934c20fe.png?resizew=161)
A.![]() | B.4 | C.6 | D.8 |
您最近一年使用:0次
9 . 如图,
的平分线与
的垂直平分线
交于点
,
于点
,若
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/50b23800-d48d-4bfb-b7b8-33639abbde2a.png?resizew=220)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786080c82db1e1d3ec6367397aa63220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9419302c045670b2f7384d6b0e7b7738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/50b23800-d48d-4bfb-b7b8-33639abbde2a.png?resizew=220)
A.1 | B.3 | C.![]() | D.9 |
您最近一年使用:0次
10 . 如图,在
中,按以下步骤作图:①分别以B,C为圆心,以大于
的长为半径作弧,两弧相交于M,N两点;②作直线
交
于点D,连接
,若
,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/e920286f-8752-427c-919e-defde13a6e02.png?resizew=168)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d452f74791f58e8400cb8d2d6038dc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212bfbd5575772ca36d6fc3e7b246e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19766bbdc2d23ae20e9f34530c3a1543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/e920286f-8752-427c-919e-defde13a6e02.png?resizew=168)
A.70° | B.73° | C.75° | D.78° |
您最近一年使用:0次