如图1,在平面直角坐标系中Rt△AOB≌Rt△DCA,其中B(0,4),C(2,0).连接BD.
![](https://img.xkw.com/dksih/QBM/2020/3/24/2429100475236352/2436974022270976/STEM/691f493b44c742d2b4c5d4d42a30fd02.png?resizew=438)
(1)求直线BD的解析式;
(2)点E是直线AD上一点,连接BE,以BE,ED为一组邻边作▱BEDF,当▱BEDF的面积为3时,求点E的坐标;
(3)如图2,将△DAC沿x轴向左平移,平移距离大于0,记平移后的△DAC为△D′A′C′,连接D′A,D′B,当△D′AB为等腰三角形时,直接写出点D′的坐标.
![](https://img.xkw.com/dksih/QBM/2020/3/24/2429100475236352/2436974022270976/STEM/691f493b44c742d2b4c5d4d42a30fd02.png?resizew=438)
(1)求直线BD的解析式;
(2)点E是直线AD上一点,连接BE,以BE,ED为一组邻边作▱BEDF,当▱BEDF的面积为3时,求点E的坐标;
(3)如图2,将△DAC沿x轴向左平移,平移距离大于0,记平移后的△DAC为△D′A′C′,连接D′A,D′B,当△D′AB为等腰三角形时,直接写出点D′的坐标.
更新时间:2020-04-08 11:39:15
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解答题-证明题
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【推荐1】在平面直角坐标系中,点
、
是反比例函数
的图象上的两点,且点
与点
关于原点对称,直线
:
经过点
,
,设点
、
的横坐标分别为
、
(
).
(1)若
,
,
,且点
在直线
上.
①求函数
的表达式;
②求
的面积;
(2)当
时,求证:
;
(3)过点
作
轴的平行线交直线
于点
,以
为边向左侧作矩形
其中
轴,且
,试说明:直线
与线段
的交点
始终在函数
的图象上.
![](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/d5698fdca52f0b841d952897c6621a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e831374cc17f948263c35205169152f.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca24341509c05e672999202f2df0ebaf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/e8e66a01-1aac-41da-8342-aecdc0c63e6c.png?resizew=458)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c31cf62d23b46dc69213bcd6331344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b799f908be37c571aafb5616ef383444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c88c150f313c47f34668ea41ba3f0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
①求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394fc6a725f1f56faeff7f4ee118b082.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7367cdebfb52c5bb719571a95085ce38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bf6e18ce413016e14fddb0efb7d53d8.png)
(3)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a21897349d3d7c94419692106887153.png)
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【推荐2】在平面直角坐标系中,O为坐标原点,抛物线
与x轴交于
,
两点,与y轴交于点C,连接
.
(2)点D为抛物线上一点且在x轴上方,满足
,求D点坐标;
(3)点M为线段
上一动点(不与B,C重合),过点M作
轴于点P,交抛物线于点N.如图2,在抛物线上找一点Q,连接
,
,
,使得
与
的面积相等,①求出点Q到直线
的距离;②当线段
的长度最小时,直接写出此时Q点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b286a72a818ccc52e63581841da08dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d57173ef4cd72eb270686875dfd623.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)点D为抛物线上一点且在x轴上方,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7226e6b3f2553457495a93666568218.png)
(3)点M为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff95970af540cc15b7de34dcb670f3c8.png)
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【推荐3】2022年北京冬奥会,其中跳台滑雪是极具观赏性的比赛项目之一.如图是某跳台滑雪比赛场地的横截面示意图,线段
表示出发台,
表示助滑坡,点
表示起跳点,线段
表示着陆坡,点
表示此跳台滑雪的
点.以水平地面为
轴,过点
作
轴的垂线为
轴,建立平面直角坐标系.已知起跳点
到水平地面的距离为60米,到
轴的距离是40米,
米,
米.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/2fb4a3db-5fbb-4758-90ca-236db0f3e76d.png?resizew=182)
K点是跳台滑雪中打出距离分所用的参照点,此跳台的参照距 离是75米,即CK=75米 .
距离分=60+2×(跳跃距离-75) .
跳跃距离是指起跳点C与着陆点之间的距离.
(1)求点
的坐标;
(2)某运动员从点
滑出,在空中飞行的轨迹(与横截面在同一平面内)可以近似地看成一条抛物线,其函数表达式为
.
(1)若该运动员第一跳的距离分是60分,求此时该抛物线的表达式;
(2)为了在第二跳中取得更好的成绩,该运动在起跳角度和空中姿势方面做了一定的调整,使得第二跳的飞行轨迹抛物线的表达式为
,求该运动员此跳的距离分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/2fb4a3db-5fbb-4758-90ca-236db0f3e76d.png?resizew=182)
K点是跳台滑雪中打出距离分所用的参照点,此跳台的参照距 离是75米,即CK=75米 .
距离分=60+2×(跳跃距离-75) .
跳跃距离是指起跳点C与着陆点之间的距离.
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
(2)某运动员从点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d015b6bf572155079ad3601780322f4a.png)
(1)若该运动员第一跳的距离分是60分,求此时该抛物线的表达式;
(2)为了在第二跳中取得更好的成绩,该运动在起跳角度和空中姿势方面做了一定的调整,使得第二跳的飞行轨迹抛物线的表达式为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0bd1c24796f1d4f27ff790115bfaa9.png)
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【推荐1】在平面直角坐标系xOy中,给出如下定义:若点P在图形M上,点Q在图形N上,称线段PQ长度的最小值为图形M,N的密距,记为d(M,N).特别地,若图形M,N有公共点,规定d(M,N)=0.
(1)如图1,⊙O的半径为2,
①点A(0,1),B(4,3),则d(A,⊙O)= ,d(B,⊙O)= .
②已知直线L:y=
与⊙O的密距d(L,⊙O)=
,求b的值.
(2)如图2,C为x轴正半轴上一点,⊙C的半径为1,直线y=﹣
与x轴交于点D,与y轴交于点E,直线DE与⊙C的密距d(DE,⊙C)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8536a5ebd76f494c03019086506d8e6a.png)
.请直接写出圆心C的横坐标m的取值范围.
(1)如图1,⊙O的半径为2,
①点A(0,1),B(4,3),则d(A,⊙O)= ,d(B,⊙O)= .
②已知直线L:y=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2d320df69faef12fbd61e78a0e3bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c55e4f3eda94bc505f103b10bc1fee7.png)
(2)如图2,C为x轴正半轴上一点,⊙C的半径为1,直线y=﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ae6e92de4f0213ebae01280aa50d39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8536a5ebd76f494c03019086506d8e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2019/11/14/2333750677864448/2336095153348608/STEM/f1f1022259cb4649a1fd2c2d3f456886.png?resizew=395)
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【推荐2】在平面直角坐标系
中,对于点P和线段
,我们定义点P关于线段
的线段比![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4f67194e47840df8576e618deba697.png)
(1)已知点
.
①点
关于线段
的线段比
__________;
②点
关于线段
的线段比
,求c的值.
(2)已知点
,点
,直线
与坐标轴分别交于
两点,若线段
上存在点使得这一点关于线段
的线段比
,直接写出m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df4f67194e47840df8576e618deba697.png)
(1)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bdc911ece3f9e93505bcb919f62e0a.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f579b73ca01978ec68e716f993bc3766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
②点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40aaa43c219bd035f09cc00cf3e15071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc66cd5ccd5a579a42c6a241c62d764.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8649ce18c628d0e03e72cef541f8284f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af9154a20709e85658880d3599596ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/017c9e2cd0376ad880af639070991c47.png)
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解答题-计算题
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解题方法
【推荐1】学习了正多边形之后,小马同学发现利用对称、旋转等方法可以计算等分正多边形面积的方案.
(1)请聪明的你将下面图①、图②、图③的等边三角形分别割成2个、3个、4个全等三角形;
(2)如图④,等边△ABC边长AB=4,点O为它的外心,点M、N分别为边AB、BC上的动点(不与端点重合),且∠MON=120°,若四边形BMON的面积为s,它的周长记为l,求
最小值;
(3)如图⑤,等边△ABC的边长AB=4,点P为边CA延长线上一点,点Q为边AB延长线上一点,点D为BC边中点,且∠PDQ=120°,若PA=x,请用含x的代数式表示△BDQ的面积S△BDQ.
(1)请聪明的你将下面图①、图②、图③的等边三角形分别割成2个、3个、4个全等三角形;
(2)如图④,等边△ABC边长AB=4,点O为它的外心,点M、N分别为边AB、BC上的动点(不与端点重合),且∠MON=120°,若四边形BMON的面积为s,它的周长记为l,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751ccb261e861d98df497747aa70d7a7.png)
(3)如图⑤,等边△ABC的边长AB=4,点P为边CA延长线上一点,点Q为边AB延长线上一点,点D为BC边中点,且∠PDQ=120°,若PA=x,请用含x的代数式表示△BDQ的面积S△BDQ.
![](https://img.xkw.com/dksih/QBM/2020/3/17/2421324835315712/2421713524432896/STEM/3643717326ff4285aca3d20b627fff12.png?resizew=590)
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【推荐2】如图①,在
中,
,
,
,
,动点
从点
出发,沿射线
以每秒
个单位长度的速度运动,过点
作
的垂线交
于点
,以
为边向上作矩形
,点M在AB或AB的延长线上,
,当点
与点
重合时点
停止运动,设点
运动的时间为
(秒).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/26779371-0824-4d5a-bb78-32d588dff0b8.png?resizew=198)
(1)求
的长;
(2)当
平分矩形
的周长时,求
的值;
(3)当点
在
的直角边的垂直平分线上时,直接写出
的值;
(4)如图②,当点
在
的延长线上时,
、
分别交边
于点
、
,当
与图中某个三角形全等时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875cd2860fb57cedf932aa0535d2e1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/4/26779371-0824-4d5a-bb78-32d588dff0b8.png?resizew=198)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(4)如图②,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568b213746dab0872fd9ea3cb883e898.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解答题-问答题
|
困难
(0.15)
解题方法
【推荐3】如图,矩形ABCD中,AB=4,AD=3,∠DAB的角平分线交边CD于点E.点P在射线AE上以每秒
个单位长度的速度沿射线AE方向从点A开始运动;过点P作PQ⊥AB于点Q,以PQ为边向右作平行四边形
,点N在射线AE上,且AP=PN.设P点运动时间为t秒.
![](https://img.xkw.com/dksih/QBM/2020/6/16/2485969546878976/2490967826153472/STEM/00a2055366bd4bd0b85e55621ea822e5.png?resizew=139)
(1)PQ= (用含t的代数式表示).
(2)当点M落在BC边上时,求t的值.
(3)设平行四边形PQMN与矩形ABCD重合部分面积为S,当点P在线段AE上运动时,求S与t 的函数关系式.
(4)直接写出在点P、Q运动的过程中,整个图形中形成的三角形存在全等三角形时t的值(不添加任何辅助线).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac79e422ba4876949f0514c44539b1.png)
![](https://img.xkw.com/dksih/QBM/2020/6/16/2485969546878976/2490967826153472/STEM/00a2055366bd4bd0b85e55621ea822e5.png?resizew=139)
(1)PQ= (用含t的代数式表示).
(2)当点M落在BC边上时,求t的值.
(3)设平行四边形PQMN与矩形ABCD重合部分面积为S,当点P在线段AE上运动时,求S与t 的函数关系式.
(4)直接写出在点P、Q运动的过程中,整个图形中形成的三角形存在全等三角形时t的值(不添加任何辅助线).
您最近一年使用:0次
解答题-证明题
|
困难
(0.15)
【推荐1】如图,在平面直角坐标系中,过点A(﹣
,0)的两条直线分别交y轴于B(0,m)、C(0,n)两点,且m、n(m>n)满足方程组
的解.
(1)求证:AC⊥AB;
(2)若点D在直线AC上,且DB=DC,求点D的坐标;
(3)在(2)的条件下,在直线BD上寻找点P,使以A、B、P三点为顶点的三角形是等腰三角形,请直接写出P点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99a3a69b594ebdc436e708473441c6c.png)
(1)求证:AC⊥AB;
(2)若点D在直线AC上,且DB=DC,求点D的坐标;
(3)在(2)的条件下,在直线BD上寻找点P,使以A、B、P三点为顶点的三角形是等腰三角形,请直接写出P点的坐标.
![](https://img.xkw.com/dksih/QBM/2020/6/15/2485173047132160/2492175137505280/STEM/3cfc23fd577448329ac52fdd9422bee4.png?resizew=258)
您最近一年使用:0次
解答题-问答题
|
困难
(0.15)
名校
【推荐2】如图,点M的坐标为
,点A在第一象限,
轴,垂足为B,
.
(1)如果
是等腰三角形,求点A的坐标;
(2)设直线MA与y轴交于点N,则是否存在
与
相似?若存在,请直接写出点A的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9ac1bd5b288aa6fa8fa314f807e2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24624dffd30b66a5e4de57362b32b2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890c9315d1eda9beed868c7787c82d7d.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323eb2e41f461ac655012a986d5a27bb.png)
(2)设直线MA与y轴交于点N,则是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/15/0027fc7a-075a-4782-96a0-37dc28358694.png?resizew=175)
您最近一年使用:0次