![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3f5dc11efe60b4fd9a13b1d6b83842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/2024/3/31/3465716085407744/3466984018386944/STEM/f96908f783974e5c9c2d7c39f178581a.png?resizew=192)
![](https://img.xkw.com/dksih/QBM/2024/3/31/3465716085407744/3466984018386944/STEM/2cc53162433849e587d67335ce3ae199.png?resizew=216)
![](https://img.xkw.com/dksih/QBM/2024/3/31/3465716085407744/3466984018386944/STEM/b575172ebbad4c988680a92dde85f618.png?resizew=166)
图1 图2 图3
(1)如图1,当点
![](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/0c284ccb6f4ee7a8690013d2ce16e226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d541cb8b77758cc180bd2c176878a86.png)
(2)如图2,当点
![](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/0c284ccb6f4ee7a8690013d2ce16e226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1373f3809d59a7cd452b915dcd99936.png)
(3)如图3,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207be8e34da2b04f5dfe7a69be80d479.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1373f3809d59a7cd452b915dcd99936.png)
更新时间:2024-04-04 15:10:37
|
相似题推荐
解答题-证明题
|
较难
(0.4)
【推荐1】在等腰Rt△ABC中,CA=BA,∠CAB=90°,点M是AB上一点.
(1)点N为BC上一点,满足∠CNM=∠ANB.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/041ea0d7-40ca-4a80-bb74-304727de4488.png?resizew=451)
①如图1,求证:
;
②如图2,若点M是AB的中点,连接CM,求
的值;
(2)如图3,点P为射线CA(除点C外)上一个动点,直线PM交射线CB于点D,若AM=1,BM=2,直接写出△CPD的面积的最小值为 .
(1)点N为BC上一点,满足∠CNM=∠ANB.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/041ea0d7-40ca-4a80-bb74-304727de4488.png?resizew=451)
①如图1,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced79f52a63fd445c6380869613c977a.png)
②如图2,若点M是AB的中点,连接CM,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40af0bca8b3f7b31d86c71d3c85d7eae.png)
(2)如图3,点P为射线CA(除点C外)上一个动点,直线PM交射线CB于点D,若AM=1,BM=2,直接写出△CPD的面积的最小值为 .
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐2】【证明体验】
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/24/5249e2b4-aebc-4dae-b5be-176e07afa45f.png?resizew=397)
(1)如图1,在
中,
为
边上的中线,延长
至
,使
,连接
.求证:
.
【迁移应用】
(2)如图2,在
中,
,
,
为
的中点,
.求
面积.
【拓展延伸】
(3)如图3,在
中,
,
是
延长线上一点,
,
是
上一点,连接
交
于点
,若
,
,求
的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/24/5249e2b4-aebc-4dae-b5be-176e07afa45f.png?resizew=397)
(1)如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/0ad98ad714864041a632ca949308e417.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb0803e134a985e6b444138f75968d9.png)
【迁移应用】
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df049f15adb6667113ceee3a6638cd0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf15f23e8531a3127fa09b9a8dacab6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
【拓展延伸】
(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a16dc02090b6e9263555061f14fbc8c.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/00bab17635a999236e8d2e35017a208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a867f0532872cefcb37b806f62c17d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454328a8e75953fdb0835ce80d9566e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐1】如图,在▱ABCD中,∠ADC的平分线经过BC的中点E,与AB的延长线交于点F.求证:AE⊥DF.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/17/ccaf622a-94c6-4f5e-a3d6-4d653f9d84b5.png?resizew=152)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐2】数学活动课上,老师让同学们根据下面情境提出问题并解答.
问题情境:在
中,点
是边
上一点,将
沿直线
折叠,点
的对应点为
.
数学思考:
(1)“兴趣小组”提出的问题是:如图1,若点
与点
重合,过点
作
,与
交于点
,连接
,则四边形
是______ (填菱形,矩形,正方形)
拓展探究:
(2)“智慧小组”提出的问题是:如图2,当点
为
的中点时,延长
交
于点
,连接
.试判断
与
的位置关系,并说明理由;
问题解决:
(3)“创新小组”在前两个小组的启发下,提出的问题是:如图
,当点
恰好落在
边上时,
,
,
,求
的长.
问题情境:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9017cfed5393f9b21602107ed164c733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d260c4df7b0dc180af6980d21f3371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
数学思考:
(1)“兴趣小组”提出的问题是:如图1,若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d354155f71a1736c1c9186168695edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d260c4df7b0dc180af6980d21f3371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a679040c4d556723e482bacbab41356d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8057131f4bae6260aaeda1eb3c77fb7c.png)
拓展探究:
(2)“智慧小组”提出的问题是:如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b41d4070854edfaa24071137b314cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca1d09859dfab140e55e3cc3e7d67d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca1d09859dfab140e55e3cc3e7d67d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d260c4df7b0dc180af6980d21f3371.png)
问题解决:
(3)“创新小组”在前两个小组的启发下,提出的问题是:如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e5a8fdbfbdf25f6937b7a2d6a4cd95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19e69c3e231ac182ef14e0dda2fe45f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f745aecfd95f4f4f64cc1c7c98a65ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/18/ebd999c0-d5c5-479b-9c21-42f56f7bdba0.png?resizew=368)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】已知线段
是正方形
的一条对角线,点E在射线
上运动,连接
,将线段
绕点C顺时针旋转
,得到线段
,连接
.
(1)如图1,若点E在线段
上,请直接写出线段
与线段
的数量关系与位置关系;
【模型应用】
(2)如图2,若点E在线段
的延长线上运动,请写出线段
,
,
之间的数量关系,并说明理由;
【模型迁移】
(3)如图3,已知线段
是矩形
的一条对角线,
,
,点E在射线
上运动,连接
,将
绕点C顺时针旋转
,得到
,在
上截取线段
,连接
,若
,直接写出线段EF的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/30/c7fb713c-0122-4a9a-8009-a9c8f56d4904.png?resizew=611)
(1)如图1,若点E在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
【模型应用】
(2)如图2,若点E在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
【模型迁移】
(3)如图3,已知线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f9164928bcbc378f2642ad2e7cd3b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82773737609e65dea3c5c67099f1b10d.png)
您最近一年使用:0次
【推荐2】已知:如图①,在矩形ABCD中,AB=8,AD=6,连接AC,将三角形ABC沿AC翻折,使B点落在E点处,连接EC,AE,AE交DC于F点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/27f4752f-4ec3-4ee9-b40b-c0a2b5568e96.png?resizew=495)
(1)求DF的长.
(2)若将△CEF沿着射线CA方向平移,设平移的距离为m(平移距离指点C沿CA方向所经过的线段长度).当点F平移到线段AD上时,如图②,求出相应的m的值.
(3)如图③,将△CEF绕点C逆时针旋转一个角a(0°<a<∠ECB),记旋转中的△CEF为△CE′F′,过E′作E′G⊥AD于G点,在旋转过程中,当△DCE′为等腰三角形时,求出线段E′G的长度.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/27f4752f-4ec3-4ee9-b40b-c0a2b5568e96.png?resizew=495)
(1)求DF的长.
(2)若将△CEF沿着射线CA方向平移,设平移的距离为m(平移距离指点C沿CA方向所经过的线段长度).当点F平移到线段AD上时,如图②,求出相应的m的值.
(3)如图③,将△CEF绕点C逆时针旋转一个角a(0°<a<∠ECB),记旋转中的△CEF为△CE′F′,过E′作E′G⊥AD于G点,在旋转过程中,当△DCE′为等腰三角形时,求出线段E′G的长度.
您最近一年使用:0次