如图,在正方形
中,点
分别在边
上,且
,
分别交
于点
.
(1)求证:
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6612c697aa43a72115e5dce1106c0557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533f1f6ead0d794bb7c70cce9173d4a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c00abe2cd9cb334d9ffcdf992c7ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/16/78604ee9-4055-404b-a8a2-1149183bac69.png?resizew=132)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61fe81d0b136fc2acc97ab50ffbf6edf.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28f25ad36b353cd3abc6e7b21354be3.png)
更新时间:2024-01-16 13:29:44
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图1,在
和
中,
,
,
,连接
、
、
、
,
分别交
、
于点
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/2bfacb48-9925-4dc0-a39e-b0fb44f139e4.png?resizew=288)
(1)求证:
;
(2)试确定线段
和
的数量关系和位置关系;
(3)过点
作
于点
,过点
作
,交
的延长线于点
,如图2,将
的面积记为
,
的面积记为
,试判断
和
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0acc93490a6a784eb62201d93dd93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ead706ccc238d868654030a3626847c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/2bfacb48-9925-4dc0-a39e-b0fb44f139e4.png?resizew=288)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2c34a83631c3127ca5896e00cda297.png)
(2)试确定线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba870ac7e456d8daa098c9d52aeccc2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d055205e9a6387a3f6f9439650d5306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图1,在等边
中,D,E分别是边
上点,且
,
与
相交于点P,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/e8a34dd3-5890-46d1-a0ca-8abd7741ed8e.png?resizew=264)
(1)求证:
;
(2)若
,求证:
;
(3)如图2,连接
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4686991a254f5d531d018691b213ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7852eb99a283b8f0bd5a4dff3c2def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcfaca9396f85c0137b534903321fcbe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/e8a34dd3-5890-46d1-a0ca-8abd7741ed8e.png?resizew=264)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b4caec955364802e9bcac413c5ff43a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62d0e6f509dcec0ebcb0d34d212d3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f16d6d60a667eacd9a4c7d35ab6916.png)
(3)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aaf2f89ba6b6b4133453ad43cfec86a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a03f7ee97d3e9b4179c7c022acc0915.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】已知正方形
,E为对角线
上一点.
【建立模型】
(1)如图1,连接
.求证:
;
【模型应用】
(2)如图2,F是
延长线上一点,
,
交
于点G.判断
的形状,并说明理由;
【模型迁移】
(3)如图3,F是
延长线上一点,
,
交
于点G,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
【建立模型】
(1)如图1,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3737fbbd4948565798caaa7015da15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba11242dcc61d3c7c3555b598b5fdc89.png)
【模型应用】
(2)如图2,F是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0136a534af8311391c2a8e532614aa02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4da8c9541c01c2fa51788ed30cd6a9.png)
【模型迁移】
(3)如图3,F是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0136a534af8311391c2a8e532614aa02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d96a5d40d0aea9f4398ca4d0fe9b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1484f6bf8eae600845e4c937fff6a260.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/a53849b2-dfd3-43b1-a9a7-0357b0e53ba7.png?resizew=397)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图1,在正方形ABCD中,点E在边AD上,连接BE交对角线AC于M,过点M作FM⊥BE交CD于F.
![](https://img.xkw.com/dksih/QBM/2022/7/24/3029428117487616/3038788608237568/STEM/7655083271c5433589f23064b130a67e.png?resizew=272)
(1)如图1,求证:BM=MF;
(2)如图2,连接BF,当AB=6且E为AD中点时,试求CF的长.
![](https://img.xkw.com/dksih/QBM/2022/7/24/3029428117487616/3038788608237568/STEM/7655083271c5433589f23064b130a67e.png?resizew=272)
(1)如图1,求证:BM=MF;
(2)如图2,连接BF,当AB=6且E为AD中点时,试求CF的长.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在梯形
中,
,
,
是
上的一点,
交
于点
,
交
于点
.设
、
的长分别为
、
,
.那么当点
在边
上移动时,
的值是否变化?若变化,求出
的取值范围;若不变,求出
的值,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0facf189b2a3153beb7b9e077d3b1146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25306288a6976fb7590f4d1e01c6db88.png)
![](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/2eecfa3e9be8e82ff3c3270b7283a583.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/288064ff60d5b4182828a42e8b8ff7f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bed1a02239821a616bc173181e7ed2.png)
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2019/12/13/2354132208287744/2354193808039936/STEM/4ebc4e1d218949488068a3e8e67dcf75.png?resizew=158)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】在
中,
,
、
分别是
、
的点,且
.
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab41054fa9ce51b68e78d9c0cf398d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f9c0cdc0dbf38d0e8bde3ae0bcb249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ef810fcee6b9f61d0c535df315d35b.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7eb48928b9e7a0f2901930bc6652f3.png)
您最近一年使用:0次