下列长度的三条线段能组成三角形的是( )
A.3,4,8 | B.5,5,11 | C.8,7,15 | D.13,12,20 |
更新时间:2022-11-16 20:53:57
|
【知识点】 三角形三边关系的应用解读
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单选题
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【推荐1】八年级一班学生源源家和依依家到诸暨西施故里的直线段距离分别是
和
那么源源,依依两家的直线段距离不可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0017113f394bc42d821adeb220857cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b5c617e28bfb1625488d9303a7ad29.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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单选题
|
较易
(0.85)
【推荐2】如图,
过平行四边形
对角线的交点
,交
于点
,交
于点
,则:
![](https://img.xkw.com/dksih/QBM/2023/1/5/3146247739449344/3148348152610816/STEM/38988c6e1bda4ae48294c453448905a5.png?resizew=209)
①
;
②图中共有6对全等三角形;
③若
,
,则
;
④
;
其中正确的结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2023/1/5/3146247739449344/3148348152610816/STEM/38988c6e1bda4ae48294c453448905a5.png?resizew=209)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcf2e3236ea30ee2c37928b98041f13a.png)
②图中共有6对全等三角形;
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499863cfb1e85db9dd48551d9dc15985.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902e973ff3988d89a5058c42dfedf33c.png)
其中正确的结论有( )
A.①④ | B.①②④ | C.①③④ | D.①②③ |
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