1 . 在
中,
,
平分
交
于点
交
于点
,
交
于点
,有以下结论:①四边形
一定是平行四边形;②连接
所得四边形
一定是平行四边形;③保持
的大小不变,改变
的长度可使
成立;④保持
的长度不变,改变
的大小可使
成立,其中所有的正确结论是:________ .(填序号即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.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/a4a45d141f3e1e3f46ddc63fdc5ce68c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18574218da07c7acb52275b2a29d941b.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/2222eec085423ac1c57089962f3287f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bdae3d30abf70515bdbd45f9d0c380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c114237f609956017bc72f4971d5b375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c114237f609956017bc72f4971d5b375.png)
您最近一年使用:0次
2024-03-22更新
|
193次组卷
|
3卷引用:北京市西城区2022-2023学年八年级下学期期末数学试题
2 . 如图,在
中,
、
、
分别为边
、
、
上的点,
,
,
分别交
、
于点
、
,且
,
,
,有下面四个结论:
①
;
②
;
③
;
④
.
其中所有正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/a0ed1ec316bc54c37c4286c208f55667.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436f108fd4921dae15ecff19270237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f081eb23d83e39c604fd0e240210559d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0565bafba84b317d92ac6855ab1c3468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86338536656046e93b53672ade9a78b3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a329bec5627bf0eb930d1406ac13e483.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1e09818a693e991973ae3fd1e4431e.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474800ebdf053711a7d6b225c4d93e60.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59b3f4689179d7d1a500a9f67c0f730.png)
其中所有正确结论的序号是
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/250a1296-3356-4f7e-96e0-6aeb8e0a4a0c.png?resizew=143)
您最近一年使用:0次
3 . 如图,在
ABC中,AB=AC,以AB为直径的半圆O交BC于点D,交AC于点E,连接AD、BE交于点M,过点D作DF⊥AC于点F,DH⊥AB于点H,交BE于点G:下列结论:①
CDF≌
BDH,②DG=DM,③CF=FE,④BE=2DH,其中正确结论的序号是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/60b7e09f-0620-426f-9cbe-18b357a798dd.png?resizew=158)
您最近一年使用:0次
2022-02-18更新
|
515次组卷
|
3卷引用:广东省广州市海珠区2021-2022学年九年级上学期期末数学试题
广东省广州市海珠区2021-2022学年九年级上学期期末数学试题(已下线)期末难点特训(三)选填压轴50道-【微专题】2022-2023学年九年级数学下册常考点微专题提分精练(人教版)2022年四川省资阳市安岳县九年级第二次诊断考试数学试题
解题方法
4 . 如图,在菱形
中,
,点
分别是线段
上的动点(不与端点重合),且
,
与
相交于点
.给出如下几个结论:
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b75d9afeb7860c6d484e1042b0b38f3.png)
②
平分
;
③若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d51c8001e0bd8d3b37768e4c8d034e.png)
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8ec48d1bab380d4c6933ec3b6e98e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/5/abd408c6-ea17-4684-b48e-5d9a5c04064d.png?resizew=181)
其中正确的结论是_____________ (填写所有正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82d579a717399137b8c6d475d33cd4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff56ea00ca90825f3d95809de24f639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b75d9afeb7860c6d484e1042b0b38f3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61123f663c231f0536d31dfa071375d6.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecf1b0b4d14ee826f3d8a1edfafe2d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d51c8001e0bd8d3b37768e4c8d034e.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8ec48d1bab380d4c6933ec3b6e98e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/5/abd408c6-ea17-4684-b48e-5d9a5c04064d.png?resizew=181)
其中正确的结论是
您最近一年使用:0次
2020-04-13更新
|
425次组卷
|
2卷引用:湖北省随州市广水市2020-2021学年九年级上学期期末检测数学试题