如图,在
中,
,点D在
上,
,
和
是对应边.
(1)试判断
与
的位置关系,并说明理由;
(2)若
,
,求
的长.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32106516d425fded8b415bc8bf401a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/a8f0c2c0-df55-4908-b992-abe255424241.png?resizew=132)
(1)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee5bd6f04872ef8d3d833d0e2056161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef581475e8d1162dc0fe49bfeee5cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
更新时间:2024-01-04 23:11:59
|
【知识点】 利用相似三角形的性质求解解读
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在
中,
,
,
,点
在边
上(不与
,
重合),过点
作直线截
,使截得的新三角形与原
相似.
(1)所截得新三角形与原
相似个数为 ;
A.2个 B.3个 C.2个或3个 D.3个或4个
(2)当截得新三角形与原
相似的个数仅为3时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
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![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/24/94d70dda-38e2-4162-bded-bf596d287fd0.png?resizew=83)
(1)所截得新三角形与原
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.2个 B.3个 C.2个或3个 D.3个或4个
(2)当截得新三角形与原
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,正方形ABCD中,M为BC上一点,F为AM上一点,EF⊥AM,垂足为F,交AD的延长线于点E,交DC于点N.
(1)试探究△ABM与△EDN是否相似,并说明理由.
(2)如果F是AM的中点且AB=12,BM=5,求CN的长.
(1)试探究△ABM与△EDN是否相似,并说明理由.
(2)如果F是AM的中点且AB=12,BM=5,求CN的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/530e7a0e-c33f-4cbd-904e-8318a73b9822.png?resizew=135)
您最近一年使用:0次