小明用如图①所示的七巧板拼成一幅装饰图,并将装饰图放入矩形ABCD内,如图②,装饰图中的三角形顶点E、F分别在边AB、BC上,三角形①的边GD在边AD上.若图①中大正方形的面积为2,则矩形ABCD的周长是______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/0aab4476-8d1e-4188-a5ce-62534ed3a5a8.png?resizew=286)
21-22八年级下·吉林·期中 查看更多[2]
更新时间:2022-09-12 21:19:45
|
相似题推荐
填空题
|
较难
(0.4)
【推荐1】七巧板起源于我国先秦时期,古算书《周髀算经》中有关于正方形的分割术,经历代演变而成七巧板,如图1所示.19世纪传到国外,被称为“唐图”(意为“来自中国的拼图”),图2是由边长为4的正方形分割制作的七巧板拼摆而成的图形,则图中围出的“箭头”(即阴影部分)的面积为__________ .
您最近一年使用:0次
填空题
|
较难
(0.4)
名校
【推荐2】七巧板是我国祖先的一项卓越创造,被誉为“东方魔板”.由边长为
的正方形可以制作一副如图
所示的七巧板,现将这副七巧板在拼成如图
所示的造型恰好放入矩形
中
其中点
,
,
,
都在矩形边上
,若
,则
的正切值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6463a18a569beeb29f19c373d2565b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aae65a8a6ff7a6e8c42a530677840f5.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐1】如图,在
中,
,过点
作
于点
,过点
作
于点
,连接
,过点
作
,交
于点
.
与
相交于点
,若点
是
的中点,则下列结论中正确的有______ (将正确答案的序号填在横线上)
①
;②
;③
;④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c284ccb6f4ee7a8690013d2ce16e226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3f843b83e62bab294988a7ea134a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef471a1af0098e8f6ff41723194537a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9953b7b5c647641edbec4c2ab90a65f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b15fd5370fedb2cfe465a79365f9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a422d274928c636d3802b231d20340f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b63b8559eab1f7b81a562594581f1c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/ea297ec6-aa5c-47b5-a4a5-3e596e1bf7b4.png?resizew=192)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】如图,在
中,
,M是
的中点,点D在
上,
,垂足分别为E,F,连接
.则下列结论中:①
;②
;③
;④
;⑤若
平分
,则
;正确的有_____ .(只填序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b40d626dbb862ac3d45721ff5751731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b46c607b3deac746c0ef3389ad8f65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c55ee522f41c43253050e92b3c8de31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008b4d6e7d6eff05bff02cc65960c983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c47d877f313e313c891bef491915ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6505014d51fb89bec27ab3ca91f2d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9317d4400d219342a389f8b499685e76.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐1】如图,在矩形
中,
,
,P是矩形内部的一个动点,且
,连接
并延长交
于E,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee826937d2add7a93aaa1422f8b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c5ace226a547e68702df548b08cb5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】如图,
中,
是
延长线上一点,
,
是边
上一动点(不与点B重合),以
为邻边作
,连接
,G是线段
上一点且
,那么
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28bbfe351825f39ea519e841a2052ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.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/71495cab0f1369a154411defa524870b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c07d54e911c220ab497e659f8ab06c.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/e9885621b9db658ca736242116f0d06c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/5151ae7c-42b0-4a43-bf86-f127d2b7c12f.jpg?resizew=174)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐1】如图,E是正方形
边
上一点,连接
平分
交
于点F.过F作
,垂足为G,连接
并延长交
延长线于点H,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6152ff1a02bdd1fc86f6af40507c5f67.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304f8bf77804717112155e4c176e1ce6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662ecc67db7277595a0b53d8e218f799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ebab560747890fb953a77256ee939c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6152ff1a02bdd1fc86f6af40507c5f67.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/30/8cd01434-87ce-44d7-a25c-73e1a3fe5cb8.png?resizew=182)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】如图,在正方形
中,
,点E是边
上的点,且
,点F是对角线
所在直线上一点且
.过点F作
,边
交直线
于点G,则
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377f5c10cf527c87ab06bff61384f7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a586f7a419f014dc60be76b7a6f94f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb82d530e7beb05bac20af46fd2f3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7101beb36f434347d1e275301c99bb7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87448e09eaa816e50ae92d111d5ded6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7ea03277f8408fabe5b327cc34838f.png)
您最近一年使用:0次