如图1,已知点
,点
在
轴负半轴上,
是完全平方式,点
在第一象限,连接
,
,
,其中
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/21/2384b4ed-254a-494d-b156-d541076a3677.png?resizew=350)
(1)求点
的坐标;
(2)求
的度数;
(3)若
,
的平分线
交
于点
,如图2,线段
,
,
存在怎样的数量关系?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622d475f7785b71633f058e6da3c7d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20638a5b4ce78b007ab9298685d693fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302109f4c2f25b456d25d1252f658ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f842145a92b63d04c0fe88001f01d31e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/21/2384b4ed-254a-494d-b156-d541076a3677.png?resizew=350)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79684a6e92297749c005e2b23cac9710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
更新时间:2023-02-20 20:04:46
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】定义:如图1,在平面直角坐标系中,点P是平面内任意一点(坐标轴上的点除外),过点P分别作x轴、y轴的垂线,若由点P、原点O、两个垂足A、B为顶点的矩形
的周长与面积的数值相等时,则称点P是平面直角坐标系中的“美好点”.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/52303954-7766-4b28-9985-cd069b34761d.png?resizew=395)
(1)[尝试初探]点
______“美好点”(填“是”或“不是”);
(2)[深入探究]①若“美好点”
在双曲线
上,则
______;
②在①的条件下,
在双曲线
,画出
,求
的值;
(3)[拓展延伸]我们可以从函数的角度研究“美好点”,已知点
是第一象限内的“美好点”.
①求y关于x的函数表达式;
②对于图象上任意一点
,代数式
是否为定值?如果是,请求出这个定值;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/52303954-7766-4b28-9985-cd069b34761d.png?resizew=395)
(1)[尝试初探]点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e91b5ce2d68f9d0fb56eefae0c3dcf6.png)
(2)[深入探究]①若“美好点”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa1cca28adcdfe646a40819329274e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
②在①的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af2180c1ebafaddb31274d528acec5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14aeac55d519010de23642ac22cfb0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aee0c96f4f9301f1f2823060c0f0074.png)
(3)[拓展延伸]我们可以从函数的角度研究“美好点”,已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ee82573986d4fa6a7ee1b5f397edae.png)
①求y关于x的函数表达式;
②对于图象上任意一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9aa1d34d66a6876aa0566c8fc8b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781bec7fc26bf9db3e030bb3651a2e07.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,已知在平面直角坐标系内有
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/12/a55b9aef-213e-4629-9075-77a8a5c507f4.png?resizew=252)
(1)画出
向右平移三个单位的
,并写出
的坐标:______;
(2)将
绕
点逆时针方向旋转
后得到
,画出旋转后的图形,并写出
坐标:______;
(3)求(1)中
所扫过的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9c730266ecf448c14608e24d37b986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8290733c83028f6e03753f66ac263ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64196fcc78c3d4e076339b262ad91dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/12/a55b9aef-213e-4629-9075-77a8a5c507f4.png?resizew=252)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
(2)将
![](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/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
(3)求(1)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】如图①,已知
是等腰直角三角形,
,点D是
的中点.作正方形
,使点A,C分别在
、
上,连接
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/27/5eaf3095-8351-4a49-9d6f-cac82ea6ed9a.png?resizew=249)
(1)试猜想线段
和
的数量关系,请直接写出你得到的结论;
(2)将正方形
绕点D逆时针方向旋转一定角度后(旋转角度大于
,小于或等于
),如图②,(1)中的结论是否仍然成立?如果成立,请予以证明;如果不成立,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a717e6dc97553f48fcdbc36247884efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdff15fafea9a3b60d69a1789ef0220a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935ad59079c158ea0f92018fc548e4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999a995a6d07c561ce64e8952994160a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/27/5eaf3095-8351-4a49-9d6f-cac82ea6ed9a.png?resizew=249)
(1)试猜想线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999a995a6d07c561ce64e8952994160a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
(2)将正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdff15fafea9a3b60d69a1789ef0220a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fa21f33a1eb2bccdca7aeecf359e657.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99549ae6cd9aa72dfa39ed5e77d9b7e3.png)
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解答题-证明题
|
适中
(0.65)
【推荐2】阅读理解:我们把依次连接任意一个四边形各边中点得到的四边形叫中点四边形.如图1,在四边形
中,E、F、G、H分别是边
、
、
、
的中点,依次连接各边中点得到中点四边形
.
的形状,并说明理由;
(2)如图2,在四边形
中,点M在
上且
和
为等边三角形,E、F、G、H分别为
、
、
、
的中点,试判断四边形
的形状,并证明你的结论.
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
(2)如图2,在四边形
![](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/101da161ae17652ccbe7d3f888762c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59181b306aecf038d33a2e5beba0a94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
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解答题-证明题
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适中
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名校
【推荐1】已知:如图,在
中,
,
于点D,E是线段
上一点,连接
、
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.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/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/56912b67-56e4-4aae-818e-d1462769fd53.png?resizew=175)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,在
中,已知
,
,
是
的平分线,
,垂足是E,
和
的延长线交于点F.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/0238793d-b228-44ec-9ba9-d908a4bb0f8d.png?resizew=152)
(1)在图中找出与
全等的三角形,并证明你的结论;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45b04cc3e5adaeff6f9e01e29032803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/0238793d-b228-44ec-9ba9-d908a4bb0f8d.png?resizew=152)
(1)在图中找出与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfbd95d65eb10d5794257589e12e99a.png)
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,AB为量角器(半圆O)的直径,等腰直角△BCD的斜边BD交量角器边缘于点G,直角边CD切量角器于读数为60°的点E处(即弧AE的度数为60°),第三边交量角器边缘于点F处.
![](https://img.xkw.com/dksih/QBM/2013/5/6/1573647262834688/1573647268708352/STEM/f60c81a3ae6a44238b641c59eeb78edd.png)
(1)求量角器在点G处的读数α(0°<α<90°);
(2)若AB=10cm,求阴影部分面积.
![](https://img.xkw.com/dksih/QBM/2013/5/6/1573647262834688/1573647268708352/STEM/f60c81a3ae6a44238b641c59eeb78edd.png)
(1)求量角器在点G处的读数α(0°<α<90°);
(2)若AB=10cm,求阴影部分面积.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,C为线段AE上一动点(不与点A、E重合),在AE同侧分别作等边
和等边
,AD与BC相交于点P,BE与CD相交于点Q,连接PQ.
求证:
为等边三角形。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ff9d4fdd0d176042505b7aac016852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e44148e5f0bb526f677e872bec3af7.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a0d8e4b11c6ddbd7e0ee9aedd9bbc0.png)
![](https://img.xkw.com/dksih/QBM/2019/12/19/2358475065303040/2359437107232768/STEM/00132cc1d2f24b018acdc6ca374051f4.png?resizew=163)
您最近一年使用:0次