名校
1 . 如图,学校有一块三角形空地
,计划将这块三角形空地分割成四边形
和
,分别摆放“秋海棠”和“天竺葵”两种不同的花卉,经测量,
,
,
,
,
,
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3a079cfdcca9acdacecbf08f9f78cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f850c705372b8a85489505da53239fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95db05eddcfaddb6a9515d83231a025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40560ea08d6cd8c1d4d9661ee6faaa3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8832c5450a61500ccbf73d95e16f449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de006cef9e5efbcbf74229845804650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1364213f546b37f8764ddcb59e36ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3a079cfdcca9acdacecbf08f9f78cc.png)
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2023-12-11更新
|
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13卷引用:陕西省安康市2023-2024学年八年级下学期期中数学试题
陕西省安康市2023-2024学年八年级下学期期中数学试题吉林省长春市绿园区新解放学校2023-2024学年八年级上学期期中数学试题吉林省长春市榆树市第二实验中学2023-2024学年八年级上学期期末数学试题(已下线)第04讲 直角三角形-【寒假自学课】2024年八年级数学寒假提升学与练(北师大版)(已下线)第06讲 勾股定理的逆定理(6大考点+过关检测)-【寒假自学课】2024年八年级数学寒假提升学与练(人教版)陕西省榆林市靖边县2023-2024学年八年级上学期期末数学试题江苏省泰州市海陵区第二中学附属初中2023-2024学年八年级上学期期末数学试题广西壮族自治区钦州市浦北县2023-2024学年八年级下学期3月月考数学试题湖北省恩施州巴东县2023-2024学年八年级下学期第一次联考数学试题四川省绵阳市绵阳育才学校2023-2024学年八年级下学期3月月考数学试题(已下线)第一章第03讲 直角三角形(7类热点题型讲练)-【帮课堂】2023-2024学年八年级数学下册同步学与练(北师大版)湖北省知名中小学教联体联盟2023-2024学年八年级下学期期中数学试题江西省宜春市第七中学2023-2024学年八年级下学期第一次月考数学试题
2 . 如图,将
绕点
顺时针旋转
得到
,若点
在同一条直线上,且
,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f850c705372b8a85489505da53239fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4817f6d025306bfcba653b4e8d4dc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fb3f8bdb2c2e8869abbe9a9c4c3dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/45d01efa-7392-46a5-8c73-a86d43f91f98.png?resizew=186)
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2023-12-07更新
|
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4卷引用:陕西省安康市岚皋县2023-2024学年九年级上学期期中数学试题
陕西省安康市岚皋县2023-2024学年九年级上学期期中数学试题陕西省安康中学高新分校2023-2024学年九年级上学期期中数学试题陕西省商洛市2023-2024学年九年级上学期期末数学试题(已下线)第02讲 图形的旋转(知识解读+达标检测)-2023-2024学年八年级数学下册《知识解读·题型专练》(北师大版)
3 . 在
中,
,
,
,求
的长.
![](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/2160e8a16fa578a5c87721895a9b96c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4569b90904ed2a541edb8d9fac05abf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2023-11-29更新
|
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2卷引用:陕西省安康市汉阴县2023-2024学年八年级下学期期中数学试题
4 . 八年级手工小组用彩带给如图所示的三角形制作边框,已知
,
,已知m,n满足
,求制作一个边框需要彩带的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa375c3888b332f24e7d0f9b9600c694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f19a6aeeea5bd6e49c1eb86b7a22e7c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e289097d49ac6a867bd04d0ed8af07c4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/9/3e6fb1d8-0438-4eff-a71b-3dbaf1b89f1e.png?resizew=152)
您最近一年使用:0次
5 . 如图,在
中,点
分别在边
上,折叠
使得点
落在
上,若
,
,
,则
长度的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce9b6bb1f3e46026af863b2b269ecf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210830766989a07c24b05589007aebbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e918b70b02a73685e3c536c7f380e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a91146605aff8a321203a5907143cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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|
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4卷引用:陕西省安康市岚皋县城关2021-2022学年八年级下学期期中数学试题
陕西省安康市岚皋县城关2021-2022学年八年级下学期期中数学试题(已下线)专题24.4 含30度角的直角三角形五大题型-2023-2024学年九年级数学上册举一反三系列(华东师大版)(已下线)专题08 四边形的综合问题(八大题型)-【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(山东专用)(已下线)专题6.19 平行四边形(题型分类专题)(分层练习)(拨尖练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)
6 . 如图,正方形
的顶点O在原点,边
,
分别在x轴和y轴上,点C坐标为
,点D是
的中点,点P是边
上的一个动点,连接
,以P为圆心,
为半径作圆,设点P横坐标为t,当
与正方形
的边
相切时,t的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9040cff7e9e20dd2817ad9888237d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bb7ff5012ac35f2e5fa64b0247ce93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d9218917d85a1dc19e60f076b8bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be9040cff7e9e20dd2817ad9888237d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/5/a22aa532-3dfd-4233-92f9-83918cbb0790.png?resizew=176)
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2023-10-04更新
|
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|
7卷引用:陕西省安康市汉滨区瀛湖片区第六中学2021-2022学年九年级上学期期末数学试卷
陕西省安康市汉滨区瀛湖片区第六中学2021-2022学年九年级上学期期末数学试卷北师大版九年级下册 第三章 圆 单元测试卷2019年陕西省商洛市商南县中考数学一模试题江苏省苏州市昆山市第二中学2022-2023学年九年级下学期开学数学试题湖北省咸宁市通城县2022-2023学年九年级下学期开学考试数学试题陕西省延安市宝塔区第七中学2021-2022学年九年级上学期期末数学试题(已下线)(期中期末真题汇编)第24章 圆 (分层精练)-【题型分类精粹】2023-2024学年九年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)
名校
7 . 如图,四边形
是舞蹈训练场地,要在场地上铺上草坪.经过测量得知:
,
,
,
,
.
(2)求四边形
需要铺的草坪的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9142db4dd2ef151bf3d4a63afb61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658072dab0daf57c18ba302b102f8347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1e47010cbcceb8ebf7c5dbd1c7c5a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69881bb818b9b723388a7d01fe4fde1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d399eef6eee6ce110d4abf939c742297.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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2023-09-02更新
|
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|
13卷引用:陕西省安康市汉阴县2020-2021学年八年级下学期期中数学试题
陕西省安康市汉阴县2020-2021学年八年级下学期期中数学试题(已下线)第03讲 勾股定理的应用与最短路径问题-【暑假自学课】2022年新八年级数学暑假精品课(北师大版)河南省驻马店市汝南县2021-2022学年八年级下学期阶段性测试第一次月考数学试题广西壮族自治区贺州市昭平县2021-2022学年八年级下学期期中数学试题广东省深圳市龙岗区宏扬学校2021-2022学年八年级上学期期中数学试卷陕西省西安市第三中学等联考2022—2023学年八年级上学期期中联考数学试题广东省深圳市龙岗区同心实验学校2022-2023学年八年级上学期期中考试数学试题(已下线)第1章 直角三角形(A卷·知识通关练) -【单元测试】2022-2023学年八年级数学下册分层训练AB卷(湘教版)河北省廊坊市霸州市部分学校2022~2023学年八年级下学期期中数学试卷山东省德州市德城区同济中学2022-2023学年八年级下学期3月月考数学试题吉林省长春市榆树市八号镇第二中学2022-2023学年八年级上学期11月月考数学试题江西省吉安市第八中学2023-2024学年八年级上学期第一次月考数学试题安徽省亳州市重点初级中学2023-2024学年八年级下学期第三次月考试数学试题
8 . 将
,
按如图所示放置,点
在
上,
,
,
,
,
,
.
为
的中点,连接
,则
的长为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f76899b3a0bfbbdae7cb1148ad4bf018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0601713aa8218cb928f5c352964a6f.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/31fc416061545b4d18c4858113230fd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c184605abf8a721234ea6eb495f3a2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea147ada4f0aefdd3808a6a1133792eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/24/535f54f4-f8f6-4d5f-b36a-22d8c95267d0.png?resizew=165)
您最近一年使用:0次
9 . 如图,在菱形
中,
是
的中点,
平分
,连接
,交
于点
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f98875aac89fadfa3d22dd8373a6f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246a86f34603eaf2e6a948681b831b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/25/d40b12ef-1ee7-4fb5-bcfc-2700acbd29d5.png?resizew=247)
A.1 | B.![]() | C.2 | D.![]() |
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10 . 问题提出
(1)如图1,飞镖图形
,其中
,若
,则
_____________
.
问题探究
(2)如图2,在四边形
中,
.
是四边形
内一点,且
.求证:四边形
是菱形.
问题解决
(3)如图3,某校为了开展劳动教育,开辟出一块四边形
空地,数学兴趣小组的同学们测得
,现需要在四边形
空地内取点
安装一个取水装置,使得点
到点
的距离相等,是否存在点
满足条件?若存在,求出
的面积;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/25/5633f139-6a7d-4b21-8f5f-6e7ae62cc872.png?resizew=423)
(1)如图1,飞镖图形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714521e7f5d4f617b5d6aa2d6e1ab178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5c07bf0a2f35fc34d09e1489aadc79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb663fe83b1f7e93e13d91cc6460f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
问题探究
(2)如图2,在四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02847cf89487001076cc88ba7acc59e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f8bc51340930e5b821dd1960462baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab158dd9e96abcae0f115f54fa66c5b.png)
问题解决
(3)如图3,某校为了开展劳动教育,开辟出一块四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4203ed0d446c25a4d8dee645d939324b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
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