如图,在
中,
,点D、E分别是
的中点,连接
、
.若
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2023/4/4/3209078311772160/3217185053032448/STEM/adce0f83b69546c8968b4e0258d393f4.png?resizew=188)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/887721a843b2dc8e947cc42d09868e33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614cfe083d47396e734ffba234649486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2023/4/4/3209078311772160/3217185053032448/STEM/adce0f83b69546c8968b4e0258d393f4.png?resizew=188)
A.10 | B.![]() | C.![]() | D.![]() |
22-23八年级上·福建泉州·期末 查看更多[4]
福建省泉州市石狮市2022-2023学年八年级上学期期末质量抽测数学试题(已下线)期中测试卷02(考察内容:第十六、十七、十八章)-2022-2023学年八年级数学下册同步考点知识清单+例题讲解+课后练习(人教版)(已下线)期中夯实基础60题必刷题专训(第十六、十七、十八章)-2022-2023学年八年级数学下册同步考点知识清单+例题讲解+课后练习(人教版)河南省周口市商水县化河乡第一初级中学2023-2024学年八年级上学期12月月考数学试题
更新时间:2023-04-15 19:22:39
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【推荐2】如图,已知x2=3,那么在数轴上与实数x对应的点可能是( )
![](https://img.xkw.com/dksih/QBM/2017/12/29/1848870755106816/1853221077581824/STEM/e203d6bf-656a-410e-aae6-5b9c63685562.png?resizew=287)
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A.P1 | B.P4 |
C.P2或P3 | D.P1或P4 |
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【推荐1】如图所示,在
中,
,且周长为36 m,点P从点A开始沿
边向B点以每秒1m的速度移动;点Q从点B沿
边向点C以每秒2m的速度移动,如果同时出发,则过3秒时,点B到
的距离为( )m.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/7/fab31055-d08c-46d5-b7db-d8544d27fcb0.png?resizew=128)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2820707d9b977be299147728a55483f4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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A.![]() | B.6m | C.3m | D.![]() |
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【推荐2】在
中,
,在线段
上有一点D,使
,已知
,
,则线段
的长为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/88344afe-c15b-4421-ae72-ae6fe3598e3b.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21fc8952a291fd2e823fe6993852bf4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaeeec5029f06fbfca8acfa899dbe472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26ad70d2b3aac8604834d57dfc59bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/88344afe-c15b-4421-ae72-ae6fe3598e3b.png?resizew=136)
A.6 | B.7 | C.8 | D.9 |
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