1 . 如图,点
、
、
是正方体上的三个顶点,则
的度数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/9bb7b246-2895-4d08-afa8-c896c709b208.png?resizew=129)
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2 . 如图,
的内切圆
与
,
,
分别相切于点为D,E,F,且
,
,
,则
的半径r为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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3 . 如图,在平面直角坐标系中,正方形
的顶点
、
、
的坐标分别为
、
、
.若抛物线
的图象与正方形
有公共点,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf210c8c9e83e70f2d3ede1e18a5f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/9/1e0c1378-dfae-46b1-bf69-848d596050d4.png?resizew=142)
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2023-12-08更新
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266次组卷
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14卷引用:吉林省长春市汽开区2021-2022学年九年级下学期6月质量检测数学试题
吉林省长春市汽开区2021-2022学年九年级下学期6月质量检测数学试题(已下线)22.1.2 二次函数y=ax2的图象和性质(分层练习)-2022-2023学年九年级数学上册同步精品课堂(人教版)吉林省实验中学2022-2023学年上学期九年级质量检测(一)数学试卷(9月考)(已下线)第二十二章 二次函数(B卷·学霸加练卷,难度★★★★★)-【单元测试】2022-2023学年九年级数学上册分层训练AB卷(人教版)湖北省黄冈市部分学校2022—2023学年上学期九年级第一次测评数学试题 河南省信阳市息县2022-2023学年九年级上学期适应性测试(一)数学试题吉林省长春市长春经济技术开发区洋浦学校2022-2023学年九年级上学期期中数学试题山西省吕梁市汾阳市2022-2023学年九年级上学期期中数学试卷河南省开封市第十三中学2022-2023学年九年级上学期期中数学试题山西省吕梁市汾阳市海洪初级中学校2022-2023学年九年级上学期期中考试数学试题河北省保定市雄县第一初级实验中学2023-2024学年九年级上学期第一次月考数学试题福建省泉州市永春县第一中学2023-2024学年九年级上学期月考数学试题江西省南昌市2023-2024学年九年级上学期期末数学试题天津市第六十一中学2023-2024学年九年级上学期期末数学试题
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4 . 如图,正方形四个顶点分别位于两个反比例函数
和
的图象的四个分支上,则
的值=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85410ff00c81839ff9a64bf86dc36f5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bde98b608331387ffbfaab1845cb662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/25/0d664956-946f-43b8-bcb0-1210ba5554b1.png?resizew=200)
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2023-10-23更新
|
382次组卷
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8卷引用:安徽省合肥市瑶海区第三十八中学2023-2024学年九年级上学期期中数学试题
5 . 在平面直角坐标系
中,正方形
的顶点A,B的坐标分别为
,
,点C在点B的右侧,则点C的坐标为______ .(用含m的式子表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085f6b4425812d3fa3dd9c426cbd6c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e53f24d4ede47c2e29be4ad39e0140c.png)
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2023-10-10更新
|
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2卷引用:福建省泉州市三校2022-2023学年八年级下学期期末数学试题
6 . 七巧板被誉为“东方魔板”,小丽利用七巧板
如图甲
中的各板块拼成一个“帆船”
如图乙
,则“帆船”的长与高之比为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/27/475657e9-6faa-4bbb-a7bc-12931f3997f6.png?resizew=261)
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7 . 在平面直角坐标系中,直线
:
与
轴交于点
,如图所示,依次作正方形
、正方形
、……、正方形
,使得点
、
、
、……在直线
上,点
、
、
、……在
轴正半轴上,则点
的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/17/260015aa-9aa9-41a7-9c37-6df5f7607c95.png?resizew=181)
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8 . 如图,在平面直角坐标系中,正方形
的顶点O、B的坐标分别是
,
,则顶点C的坐标是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6a9ffffc0c461881b427c543924cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/15/0c5e4fb2-0e5a-470e-ba18-aaf0dbfda5ab.png?resizew=161)
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2023-09-07更新
|
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6卷引用:河北省保定市顺平县2022-2023学年八年级下学期期中数学试题
9 . 正方形
,
,
,…按如图的方式放置.点
,
,
,…和点
,
,
,…分别在直线
和
轴上,则点
的坐标是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4635a4e561d862638f6818e85e74bfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/220a67f3143cc51f6496c874d3ce4f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb95430ad5499ddd5197388b8ed9b5eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/25/e390ce67-934a-451d-8397-71e36088adc3.png?resizew=248)
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10 . 如图,已知
,
是
的平分线,将三角尺的直角顶点P放在射线
上,两直角边分别与
,
交于点C,D,
垂足为点N,
,则四边形
的面积为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/521cf191-ae70-48a9-b59b-cade0b446c0f.png?resizew=132)
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2023-08-17更新
|
105次组卷
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2卷引用:辽宁省丹东市2022-2023学年七年级下学期期末数学试题