1 . 如图,在矩形
中,
,
,
为
中点,
是线段
上一点,设
,连结
并将它绕点
顺时针旋转
得到线段
,连结
,动点
从点
向点
的运动过程中,有下面四个结论:①点
到边
的距离为
;②当
时,
;③直线
不经过点
;④
的最小值为
.其中结论正确的序号是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b397b1107afcbea58e5960a8d6efea99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381d87099ea292649c074544cf06dcdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833ee84968e2c903b6350c23943b4fe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aed0bfba78e2be6a0a8c500ce0eb8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d46151c1242b799836cf42e5b13d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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2 . 如图,
是平行四边形
的一条对角线,
,垂足分别是E、F.求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7437ac06d7480f6c63165c26a24df6.png)
(2)四边形
是平行四边形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac0d222d7960e63d43c212ac285d93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7437ac06d7480f6c63165c26a24df6.png)
(2)四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3c15b30bd155641e548a7d8c172dd4.png)
您最近一年使用:0次
2024-03-21更新
|
674次组卷
|
4卷引用:2024年新疆维吾尔自治区昌吉州 初中学业水平考试数学模拟预测题
3 . 如图,已知
,按如下步骤作图:
①分别以点
、
为圆心,大于
的长为半径画弧,两弧交于
、
两点:
②作直线
,分别交
,
于点
、
,连接
.
③过
作
交
于点
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/351edf41-1735-4e8c-bcd0-0e94d0df31bd.png?resizew=128)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4198db5536e2a6f313ff949651ac1d.png)
(2)当
,
时,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
①分别以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93148adbc6e856da9a9d263f485d003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
②作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
③过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9f641563e8533a5bb39188aa7cc182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/351edf41-1735-4e8c-bcd0-0e94d0df31bd.png?resizew=128)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4198db5536e2a6f313ff949651ac1d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/141b3836914eb2461b56174afcbb357a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca6fafd473fe3da3c3fc1d4fbc68dea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db866ecc0c098bfc32ec8a43b65bdd58.png)
您最近一年使用:0次
名校
4 . 如图,已知四边形
的对角线
,
交于点O,O是
的中点,E,F是
上的点,且
,
.
;
(2)若
,求证:四边形ABCD是矩形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/733b38eae81f97110915792fffc1521b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0684099278c16db84669a205d5a4126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee59d0701658cdb3ff925634e47af274.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec800ae7934607f4cf33773f91fc8142.png)
您最近一年使用:0次
2023-02-28更新
|
700次组卷
|
7卷引用:2024年新疆昌吉州九年级中考一模统考数学模拟试题
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