1 . 我们定义:对角线互相垂直且相等的四边形叫做“神奇四边形”.
(1)在我们学过的下列四边形①平行四边形②矩形③菱形④正方形中,是“神奇四边形”的是 (填序号);
(2)如图1,在正方形
中,E为
上一点,连接
,过点B作
于点H,交
于点G,连
、
.
①求证:四边形
是“神奇四边形”;
②如图2,点M、N、P、Q分别是
、
、
、
的中点.试判断四边形
是不是“神奇四边形”;
(3)如图3,点F、R分别在正方形
的边
、
上,把正方形沿直线
翻折,使得
的对应边
恰好经过点A,过点A作
于点O,若
,正方形的边长为6,求线段
的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/15/c3c65060-744b-4321-bb90-8d0d76d0f8e2.png?resizew=359)
(1)在我们学过的下列四边形①平行四边形②矩形③菱形④正方形中,是“神奇四边形”的是 (填序号);
(2)如图1,在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d95b61ec1e624487162d4d739ceb48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
①求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f46b357e543eb2e895d0ea4742f4546.png)
②如图2,点M、N、P、Q分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389bc3f29c058067e06e0d0d2be399da.png)
(3)如图3,点F、R分别在正方形
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7032213f46269954ee14876934031909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e737bc35da650eda3825d29799b5f86f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab14a36e0347f3885736e66e0497480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8225bbf38bf849d1bedd3944b20256ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
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7卷引用:广东省广州市天河区新都学校2022-2023学年八年级下学期期中数学试题
广东省广州市天河区新都学校2022-2023学年八年级下学期期中数学试题(已下线)2024年广东省中山市三角镇沙栏中学中考一模数学试题(已下线)数学(广州卷)-学易金卷:2024年中考考前押题密卷湖南省长沙市明德教育集团2022-2023学年八年级下学期期中数学试题(已下线)专题06 特殊平行四边形中折叠、旋转、最值、新定义问题之四大题型-【好题汇编】备战2023-2024学年八年级数学下学期期中真题分类汇编(人教版)(已下线)考题猜想05 八年级期中必刷题(拔高必刷58题21种题型)-2023-2024学年八年级数学下学期期中考点大串讲(苏科版)(已下线)期中押题卷(二)(考试范围:湘教版第1~3章)-【好题汇编】备战2023-2024学年八年级数学下学期期中真题分类汇编(湖南专用)
2 . 如图,矩形
中,
,E为
上一点(不含点A),O为
的中点,连接
并延长,交
于点F,点G为
上一点,
,连接
,
.甲、乙二位同学都对这个问题进行了研究,并得出自己的结论.
甲:存在点E,使
;
乙:
的面积存在最小值.
下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/81260ed9-da08-4fe6-874b-f1c702f097f2.png?resizew=128)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2da1d50433aecf541991fd0f01773cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90c780dac29ff8b7df5881d3b33abab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb17b01284f1fe890cdf12a622a1839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
甲:存在点E,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77c41f4dd9ea0e98c819ee865fb701d.png)
乙:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e5e61804ce550636a0354e0a78a22d.png)
下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/81260ed9-da08-4fe6-874b-f1c702f097f2.png?resizew=128)
A.甲、乙都正确 | B.甲、乙都不正确 |
C.甲正确,乙不正确 | D.甲不正确,乙正确 |
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8卷引用:2023年广东省深圳市红桂中学九年级中考模拟数学试题
2023年广东省深圳市红桂中学九年级中考模拟数学试题2022年河北省保定市中考一模考试数学试题(已下线)22.3.1 实际问题与二次函数(一)-几何图形面积问题(分层练习)-2022-2023学年九年级数学上册同步精品课堂(人教版)(已下线)第三十章 二次函数(B卷-拔高卷)-【单元测试】2022-2023学年九年级下数学分层训练AB卷【冀教版】2023年河北省唐山市丰润区九年级中考模拟数学试卷2023年安徽省安庆市九年级数学十校联盟第三次月考试卷2023年河北省邯郸市育华中学中考四模数学试题(已下线)2023年天津市中考数学真题变式题11-15题
名校
3 . 如图,在正方形
中,点
在边
上,点
在边
上,
,
交
于点
,交
于点
,连接
.下列结论:①
;②
;③
;④当
是
的中点时,
;⑤当
时,
.其中正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e16633ccbb55c157e9560259de400e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3aa78efdf783ac2483464ca068c6c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6f584802de2e7335d5b6ba33c9ac50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ca5d252a73949f1e5758141d35fd29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3128b93bcb596e553e42eabca2837358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d245076397a09d766cbeea4a4bece7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af7e94cd1fcbb0034df56c44666e5cde.png)
A.①②③④ | B.①②③⑤ | C.①③④⑤ | D.②④⑤ |
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8卷引用:广东省 深圳市南山区哈尔滨工业大学(深圳)实验学校2023-2024学年九年级上学期数学月考数学试题
4 . 如图,四边形
是长方形纸片,
,对折长方形纸片
.使
与
重合,折痕为
.展平后再过点B折叠长方形纸片,使点A落在
上的点N,折痕为
,再次展平,连接
,
,延长
交
于点G.有如下结论:①
;②
;③
是等边三角形;④P为线段
上一动点,H是线段
上的动点,则
的最小值是
.其中正确结论的序号是______ .
![](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/411b38a18046fea8e9fab1f9f9b80a5f.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b7ec7c670508d4df2c9b589a1e1cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3432d20e661779ddcefda76afcc2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234cdeeee94033501fca6596894f7b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d1d30450eeeafbb0f3021d53b580a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/26/70b84c26-d1eb-406f-8495-7050580d5747.png?resizew=198)
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5卷引用:广东省广州外国语学校2022-2023学年八年级下学期期中数学试题
广东省广州外国语学校2022-2023学年八年级下学期期中数学试题广东省广州市天河区大华学校2022-2023学年八年级下学期期中数学试题山东省济南市历城区2022-2023学年八年级上学期期末数学试题山东省济南市东南片区2022-2023学年八年级上学期期末考试数学试题(已下线)八年级数学期末模拟卷(山东济南专用,测试范围:北师大版八上全部)-学易金卷:2023-2024学年初中上学期期末模拟考试
名校
5 . 如图,正方形
的边长为1,点E是
上一动点(不与点B,C重合),过点E作
交正方形外角的平分线
于点F,交
于点G,连接
.下列结论:①
;②
;③
;④
的面积的最大值为
.其中正确的是 ___________ .(填写正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992a19339adac3a2f1aab1fbc11b1c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3767efa8adfb71001ad39df9560cbf6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01722033ed9a23d439b5b1124b879edb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50f6cbf11ab40c3897984d47c2d4d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff39c7aa648afd1080206c8080ff79e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/000e4c94-f20f-4cbc-95d7-1037ac80020d.png?resizew=186)
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|
465次组卷
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7卷引用:2023年广东省东莞市东城实验中学、东城中学、可园中学中考联考数学试卷
名校
6 . 如图,在
中,
,
,BF平分
,过点C作
于F点,过A作
于D点.AC与BF交于E点,下列四个结论:①
;②
;③
;④
.其中正确结论的序号是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9cd2cd55cc56991dde962fcefa6a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5232ca3c1e0ce4064d0094502aacb063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f630767ee09b860c735ab75b04dc3dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95adbf026e5ad4ce6f123e5e0b89da7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920475d5026e9fd317232265240ff857.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ea0d606f9537819dcac0ad8f235f6f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/aaff6094-91e5-4369-84df-d0668e0b3fbe.png?resizew=185)
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|
404次组卷
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4卷引用:广东省广州市越秀区第十六中学2022—2023学年八年级上学期数学期中测试卷
名校
7 . 如图,四边形
是正方形,点E在
的延长线上,连接
,
交
于点F,连接
,点H是
的中点,连接
,则下列结论中:①
;②
;③
;④若
,则
的面积为
.正确的是_______ (填写所有正确结论的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ed934aa29859e93b1f758229a12581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92034dd2bb9480b18709d01153467f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e90d8e7658fa1d56e1320e885a7b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7771dd56622c2a0d3a5b4bd3c2ab33a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70a7bf9d6ff43b92b91a89394149a37.png)
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您最近一年使用:0次
2022-04-03更新
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520次组卷
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9卷引用:广东省佛山市南海区南海实验中学2022-2023学年九年级上学期第一次月考数学试卷
广东省佛山市南海区南海实验中学2022-2023学年九年级上学期第一次月考数学试卷辽宁省葫芦岛市兴城市2021-2022学年九年级上学期期末数学试题(已下线)必刷卷01-2022年中考数学考前信息必刷卷(安徽专用)山东省济南市章丘区第四中学2022-2023学年九年级上学期10月月考数学试题(已下线)2022年山东青岛市高新区九年级一模数学试题变式题11-152023年四川省攀枝花市中考二模数学试题辽宁省鞍山市千山区实验教育集团2023-2024学年九年级上学期10月月考数学试题(已下线)吉林省通化市梅河口市2023-2024学年九年级上学期期末数学试题2024年四川省攀枝花市仁和区中考数学二模试题
8 . 如图,在
ABC中,AB=AC,以AB为直径的半圆O交BC于点D,交AC于点E,连接AD、BE交于点M,过点D作DF⊥AC于点F,DH⊥AB于点H,交BE于点G:下列结论:①
CDF≌
BDH,②DG=DM,③CF=FE,④BE=2DH,其中正确结论的序号是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/60b7e09f-0620-426f-9cbe-18b357a798dd.png?resizew=158)
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2022-02-18更新
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515次组卷
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3卷引用:广东省广州市海珠区2021-2022学年九年级上学期期末数学试题
广东省广州市海珠区2021-2022学年九年级上学期期末数学试题2022年四川省资阳市安岳县九年级第二次诊断考试数学试题(已下线)期末难点特训(三)选填压轴50道-【微专题】2022-2023学年九年级数学下册常考点微专题提分精练(人教版)
名校
9 . 如图,
中,
,
,点
在边
上运动(不与点
,
重合),以
为边作正方形
,使点
在正方形
内,连接
,则下列结论:①
;②当
时,
;③点
到直线
的距离为
;④
面积的最大值是
.其中正确的结论是______ .(填写所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbe63d789d491dc980b5fde181610a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f84f169e50dc59d4f7a8e1e36f5c847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4b17ce6e90cd3810a3696262e94c1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d276e04d6059cbeb428f67f10beb44.png)
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492398966988800/2493735520714752/STEM/80633a4b5c7e4c319ebf8e1e3a2189dd.png?resizew=215)
您最近一年使用:0次
2020-07-06更新
|
633次组卷
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2卷引用:2020年广东省广州市白云区九年级综合训练一模数学试题
名校
解题方法
10 . 如图,正方形ABCD的边长是3,P,Q分别在AB,BC的延长线上,BP=CQ,连接AQ,DP交于点O,并分别与CD,BC交于点F,E,连接AE.下列结论:
①AQ⊥DP
②OA2=OE•OP
③S△AOD=S四边形OECF
④当BP=1时,tan∠OAE=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12984b40804450be64426247f2a3c4d7.png)
其中正确结论的序号是 .
①AQ⊥DP
②OA2=OE•OP
③S△AOD=S四边形OECF
④当BP=1时,tan∠OAE=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12984b40804450be64426247f2a3c4d7.png)
其中正确结论的序号是 .
![](https://img.xkw.com/dksih/QBM/2020/5/16/2463747600269312/2463844910383104/STEM/b2ea92025a674759a4d66f6fb21317b6.png?resizew=165)
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2020-05-16更新
|
446次组卷
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4卷引用:广东省广州市华师附中番禺学校2019-2020学年九年级下学期第一次月考数学试题