解答
(1)问题发现:如图1,在
和
中,
,
,点
是线段
上一动点,连接
.填空:
①
的值为______ ;
②
的度数为______ .
(2)类比探究:如图2,在
和
中,
,
,点
是线段
上一动点,连接
.请判断
的值及
的度数,并说明理由;
(3)拓展延伸:如图3,在(2)的条件下,将点
改为直线
上一动点,其余条件不变,取线段
的中点
,连接
、
,若
,则当
是直角三角形时,线段
的长是多少?请直接写出答案.
(1)问题发现:如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2598f844644c4245eb226ecca57ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a356ae65ad2cccdd27189efcea2da0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f4907f159ff9c4caacf266db591588.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685516a27697104e83b311d76efa17aa.png)
(2)类比探究:如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2598f844644c4245eb226ecca57ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17df03e1b7418a84e8f8a3d512b2c1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f4907f159ff9c4caacf266db591588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685516a27697104e83b311d76efa17aa.png)
(3)拓展延伸:如图3,在(2)的条件下,将点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8045b729b7f257861057191a8a2388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
19-20九年级上·吉林·期中 查看更多[21]
吉林省市命题七十七2019-2020学年九年级上学期期中数学试题2020年河南省中考模拟数学试题(一)(已下线)专题冲刺小卷12 几何综合问题-2020年《三步冲刺中考·数学》之最新模考分类冲刺小卷(河南专用)2020年山东省东营市东营区中考数学6月模拟试题2020年山东省东营市东营区九年级6月学业模拟考试数学试题2020年山东省广饶县初中学业水平模拟考试数学试题河南省周口市太康县2020-2021学年九年级上学期期末数学试题2021年河南郑州外国语中学原创押题卷(B卷) 数学试题(已下线)【万唯原创】2021年河南试题研究-练习册-第四章 三角形5河南省郑州市外国语中学2019-2020学年九年级上学期第二次月考数学试题2022年山东省菏泽市牡丹区中考二模数学试题河南省新乡市卫辉市2021-2022学年九年级上学期期末数学试题福建省三明市永安市2022~2023学年九年级上学期期中考试卷河南省郑州市金水区经纬中学2021-2022学年九年级下学期开学数学试卷(一模) 安徽省亳州市2022--2023学年九年级上学期期末数学试卷山东省东营市东营区文华学校2022-2023学年九年级上学期期末数学试题(已下线)2023年河南省洛阳市偃师市中考数学一模试题变式题21-23题2023年山东省东营市垦利区中考二模数学试题江西省抚州市八校2023-2024学年九年级上学期第一次月考数学试题江苏省宿迁市沭阳县怀文中学、人民路中学2023-2024学年九年级上学期1月期末数学试题2024年山东省泰安市岱岳区中考三模数学试题
更新时间:2023-05-09 17:18:33
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解答题-作图题
|
较难
(0.4)
名校
【推荐1】已知在
中,
,
为锐角,
是
边上的高,在射线
上取一点
,使
,在平面内取一点F,使
,且点E,F在直线
的异侧,连接
交
于点
.
(1)如图1,当
时,补全图形,并证明.
;
(2)在图1中用等式表示线段
,
,
的数量关系,并证明;
(3)设
当
的大小变化时,若
,直接写出线段
长的取值范围.
![](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/8fabb884dc5f9609de491245463bbe9a.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/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3620030e8808da46df97330103827913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675bf35c0178ea403aa3e60b3f12f6bb.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/4/bd689c16-9190-4dee-b4e8-5377b8b74e23.png?resizew=335)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49359b658da24e42f9d25a16b767d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5503cd14265fa85a8a4fdf971b22faf8.png)
(2)在图1中用等式表示线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a58780dfcfe13c457f88f6841737185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca2c428f2068725bac0ba09be7b8da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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解答题-证明题
|
较难
(0.4)
【推荐2】如图,AB是半圆O的直径,BD是一条弦,点C是
的中点,
于点E,交BD于点F,连接AC、BC、CD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/71196198-7c6a-4429-bc52-31d8f5017140.png?resizew=182)
(1)求证:
;
(2)若
,
,则
的半径为___________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d887dec04b7d49d19ad65ef5db3598e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f913298f0fae9f55377a8deab9f099dd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/71196198-7c6a-4429-bc52-31d8f5017140.png?resizew=182)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f0a738c3ad8856e2cd6061f862fc7a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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解答题-证明题
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(0.4)
名校
【推荐1】如图,直线
交x轴于B,交y轴于A,点C在
延长线上,过C作
于D,连
,设C点坐标为
,若
.
![](https://img.xkw.com/dksih/QBM/2022/12/7/3125534962130944/3127934330265600/STEM/a841f90a8aa141dfabd079879832c7a6.png?resizew=191)
(1)求证:
平分
;
(2)点E在
上,连
交
于F,
;求证:
;
![](https://img.xkw.com/dksih/QBM/2022/12/7/3125534962130944/3127934330265600/STEM/a462350832924861b5fd673ffc4bb499.png?resizew=216)
(3)在(2)条件下,过F作
于H,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d664af09d25fe943ed5634b9c04e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785a740e5d48288f8516f6952867fcfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7883c0ef7e4a9a4c65dc0c49c83fea.png)
![](https://img.xkw.com/dksih/QBM/2022/12/7/3125534962130944/3127934330265600/STEM/a841f90a8aa141dfabd079879832c7a6.png?resizew=191)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
(2)点E在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b0308b7b53b16bd47e953e9d7eb1c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b51502d3e8d44b262c8c1721f60c0db.png)
![](https://img.xkw.com/dksih/QBM/2022/12/7/3125534962130944/3127934330265600/STEM/a462350832924861b5fd673ffc4bb499.png?resizew=216)
(3)在(2)条件下,过F作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3fd802ae95842c5df96345792b6fa70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167b2bf165d5c60f0efdb88b2d1273d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://img.xkw.com/dksih/QBM/2022/12/7/3125534962130944/3127934330265600/STEM/3b2062202b464142afd1af8e77534a6d.png?resizew=214)
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解答题-问答题
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【推荐2】如图1,直线
与x轴交于点A,与y轴交于点B,点C与点A关于y轴对称.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/ec475088-424d-4276-a6c1-bddb6318a920.png?resizew=412)
(1)求直线
的函数表达式;
(2)设点M是x轴上的一个动点,过点M作y轴的平行线,交直线
于点P,交直线
于点Q,连接
.
①若
,请直接写出点P的坐标______;
②若
的面积为
,请直接写出点M的坐标______;
③若点K为线段
的中点,连接
,如图2,若在线段
上有一点F,满足
,请直接写出点F的坐标______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8e2fa0e4383590afe6d8f1d7aa8bdc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/5/ec475088-424d-4276-a6c1-bddb6318a920.png?resizew=412)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)设点M是x轴上的一个动点,过点M作y轴的平行线,交直线
![](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/e69d2b798744645af88a4fa411344a83.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ff267b4e9bc24c95c599d2b705671b.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a551505ae42b49904bab59b17012d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4700efcb84c4027ce7a50af0d5212fc.png)
③若点K为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1bd75fbe8bec72e27a3b3b6d48f138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eecc861fba3f5ed9f08815c223a2179e.png)
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解答题-证明题
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较难
(0.4)
【推荐1】如图,在
中(
),D点为
边上一点,
,将
绕D点逆时针旋转得到
,射线
与射线
交于E点(E不与B,C重合),射线
与射线
交于F点;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/2209360e-2862-4780-a48a-81bcb16d886a.png?resizew=337)
(1)求证:
;
(2)连接
,求证:
;
(3)当
,
,
时,若
是以
为底等腰三角形,请直接写出
长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914320e1e549e89ff6d5b885ac63d9b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd6fe78f6cfdfefd6d8be45473b25b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a54e7b35c73ee578c4d01479ddb74cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/2209360e-2862-4780-a48a-81bcb16d886a.png?resizew=337)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05eef28ce152fb1a5ae88658b23fdbf.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56e79a7412a1c5159979295dd62bbd7.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7099026716ee1821dd7d9f157dc055f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57abb19d63cad8f06c62f2ed75d70dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0acc93490a6a784eb62201d93dd93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
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解答题-计算题
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较难
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【推荐2】如图1,
的直径
垂直弦
于点
,且
,
.
的长.
(2)探究拓展:如图2,连接
,点
是
上一动点,连接
,延长
交
的延长线于点
.
①当点
是
的中点时,求证:
;
②如图3,连接
,
,当
为等腰三角形时,请计算
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73538c09794f3223540bfe074edff82b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)探究拓展:如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
①当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62f628953da716c2f9f87c2ede38a9c.png)
②如图3,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐1】在矩形
中,
,
是边
上一点,把
沿直线
折叠,顶点
的对应点是点
,交
于
,连结
交
于
,且
,连结
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/be00da15-3da6-4b86-8cb3-1cfea117890f.png?resizew=157)
(1)求证:四边形
是菱形;
(2)当
,且
时,求
的长;
(3)当
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b65065ec3a0cb4b050989165c003d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e78042a384255038de485fd7bc0839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d89ff9e8f94e5f3956ac0c9509e1888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/be00da15-3da6-4b86-8cb3-1cfea117890f.png?resizew=157)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2389de73a23244c2d11def3b4f714ab.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d5c3ccd350ed8aad71fed37ea423b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae995fabb31e44bd5eaa5642e7e95c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7617d86e6bed133a865f58dea804e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】如图,在矩形
中,点
为坐标原点,点
的坐标为
,点
的坐标为
,点
在边
上,直线
的解析式为
,直线
交
于点
,交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/a86266bf-589d-4211-83a6-68c13f76a8cf.png?resizew=368)
(1)如图①,连接
,求点
,
的坐标;
(2)如图②,连接
,若以
和
为邻边作矩形
,求点
的坐标;
(3)如图③,在第一象限内,直线
上是否存在点
,使
是等腰直角三角形?若存在,求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fed700b7a3ab2ee7fbae12507033af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cfa2a6d9749a619edf80bad8b3e4962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d6e08526a91f8dfd160e7da2f92a3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/1/a86266bf-589d-4211-83a6-68c13f76a8cf.png?resizew=368)
(1)如图①,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)如图②,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3258a144e25987f0b156a25882c580b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)如图③,在第一象限内,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784b26de6134b6d3f5a81e2882a7d7f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次