在
中,
,过点C作直线
于点M,
于点N.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/fba7f9c9-0b1d-4f89-afa7-b6afd145e236.png?resizew=358)
(1)若
在
外(如图1),求证:
;
(2)若
与线段
相交(如图2),且
,则
= .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149d217efaf5090696904003ec06393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789e6f79137d4923d90a04f959bef2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85c6b63bef0f632fee2e7e438a4b5cc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/fba7f9c9-0b1d-4f89-afa7-b6afd145e236.png?resizew=358)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ebc3f4a99aed54c21982621693dbee.png)
(2)若
![](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/3b54b2469f3f722a9c7f1d35faafa545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
23-24八年级上·全国·期末 查看更多[1]
(已下线)猜想02全等三角形(5种解题模型专练)-2023-2024学年八年级数学上学期期末考点大串讲(人教版)
更新时间:2024-01-13 13:03:38
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解答题-问答题
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较易
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【推荐1】如图,在
中,
是高线,
、
是角平分线,它们相交于点
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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您最近一年使用:0次
解答题-证明题
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较易
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名校
【推荐1】如图,在等腰△ABC中,AB=AC,边BC上有一点D,过D作DE∥AB,满足DE=AD且DE为∠ADC的角平分线.
![](https://img.xkw.com/dksih/QBM/2021/7/16/2765663733342208/2799338642284544/STEM/476a786a34e549c9bbaa74a482588a50.png?resizew=356)
(1)求证:△ABD≌△DEC;
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![](https://img.xkw.com/dksih/QBM/2021/7/16/2765663733342208/2799338642284544/STEM/476a786a34e549c9bbaa74a482588a50.png?resizew=356)
(1)求证:△ABD≌△DEC;
(2)求∠B的度数.
您最近一年使用:0次
解答题-证明题
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较易
(0.85)
【推荐2】如图①,点A,E,F,C在同一直线上,
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/a2eb9126-5010-434a-bd0e-c0715208d95e.png?resizew=147)
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a3f33a67432f67ce08ea63da26a146.png)
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
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(1)求证:
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(2)若
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您最近一年使用:0次