如图1,等腰
中,
,点A,B分别在坐标轴上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/316567d8-4413-4806-abc4-e0ab66cd676d.png?resizew=454)
(1)当点C的横坐标为5时,则B点的坐标是______.
(2)在等腰
运动过程中,位置如图2所示,若x轴恰好平分
,
交x轴于M,过C作
轴于D,求
的值.
(3)在等腰
运动过程中,如图3所示,若x轴恰好经过边
的中点N,过C作
轴于D,连接
,请直接写出线段
之间的数量关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/316567d8-4413-4806-abc4-e0ab66cd676d.png?resizew=454)
(1)当点C的横坐标为5时,则B点的坐标是______.
(2)在等腰
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2634263d383b0487281fdcf6fe3cc625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291eb43152b6a95751c9a86d2327a254.png)
(3)在等腰
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2634263d383b0487281fdcf6fe3cc625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72193cfbda4b50d487433e83e1eaca6b.png)
更新时间:2023-11-01 19:39:48
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相似题推荐
解答题-问答题
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较难
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【推荐1】如图,在矩形
中,
,
,点
从点
出发沿
以
的速度向点
移动;同时,点
从点
出发沿
以
的速度向点
移动.当点
与点
重合时两点都停止移动,时间为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/66555105-39a3-40c2-b08a-ffbe58a08076.png?resizew=399)
(1)如图1,若
时,求时间
的值:
(2)如图2,连接
,作
,垂足为点
,作
的外接圆
.
①判断点
与
的位置关系,并说明理由.
②连接
、
,若
的面积等于9,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d989a128e30a701dfff5592476a76bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/66555105-39a3-40c2-b08a-ffbe58a08076.png?resizew=399)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd27e38cb2a9a5c3000a56e9ffe9e19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8944bb1af77920b5018eebf3af16b2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c2685019d9d97d8008dfc86cd6c02d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
①判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
②连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5634a208294350f8ec151cd19b6d3278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e66b12019cdf68327d34c90dff7c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e287887b05e5a3a59a7b7bf1a64f9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解答题-证明题
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名校
【推荐2】【建立模型】:如图1,已知
,
,
,顶点
在直线
上.
【操作】:过点
作
于点
,过点
作
于点
.求证:
.
(1)如图2,在直角坐标系中,直线
与
轴交于点
,与
轴交于点
,将直线
绕着点
顺时针旋转
得到
.求
的函数表达式.
(2)如图3,在直角坐标系中,点
,作
轴于点
,作
轴于点
是线段
上的一个动点,点
位于第一象限内.问点
能否构成以点
为直角顶点的等腰直角三角形,若能,请求出此时
的值,若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
【操作】:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13b505788d3d02bf232ac637fc3a8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e72d26eae9a5470ac982541c609b109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9411a63e60fc5e566a97f01155c3fd.png)
(1)如图2,在直角坐标系中,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0289ce4ad5a5050d4675750dc5cde4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)如图3,在直角坐标系中,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24565b646c992e5c22ec7c915b4178a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2485101d50dd5eef3e4fb242adfca527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b45db8dd8768994af51206565379fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd4b16bb4bd92c83f7123afd2ff78f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c7406bc5c034a668886932a4df2437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3327413f0e842b9f18ab380d167c0202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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名校
【推荐1】如图1,平面内三点O,M,N,如果将线段OM绕点O旋转90°得ON, 称点N是点M关于点O的“等直点”,如果将线段OM绕点O顺时针旋转90°得ON,称点N是点M关于点O的“正等直点”.
![](https://img.xkw.com/dksih/QBM/2022/4/28/2968122338746368/2972948128931840/STEM/dc6fcd43-d1ec-4e82-90c0-426009e3f330.png?resizew=675)
(1)如图2,在平面直角坐标系中,已知点P(2,1).
①在
(﹣1,2),
(2,﹣1),
(1,﹣2)三点中, 是点P关于原点O的“等直点”, 是点P关于原点O的“正等直点”;
②若直线
:y=kx-4交y轴于点M,若点N是直线
上一点,且点N是点M关于点P的“等直点”,求直线
的解析式;
(2)如图3,已知点A的坐标为(2,0),点B在直线
:y=3x上,若点B关于点A的“等直点”C在坐标轴上,D是平面内一点,若四边形ABDC是正方形,直接写出点D的坐标.
![](https://img.xkw.com/dksih/QBM/2022/4/28/2968122338746368/2972948128931840/STEM/dc6fcd43-d1ec-4e82-90c0-426009e3f330.png?resizew=675)
(1)如图2,在平面直角坐标系中,已知点P(2,1).
①在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
②若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)如图3,已知点A的坐标为(2,0),点B在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
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【推荐2】如图1,在△ABC中,∠BAC=90°,AB=AC,点D在AC上,点E在BA的延长线上,BD与CE相交于点F, 且BD=CE.
![](https://img.xkw.com/dksih/QBM/2019/11/11/2331598955339776/2331799712153600/STEM/23eec7e43abb4d34a1e02fbac13bfa89.png?resizew=409)
(1)求证:BF⊥CE.
(2)如图2,连结AF ,证明AF平分∠BFE.
![](https://img.xkw.com/dksih/QBM/2019/11/11/2331598955339776/2331799712153600/STEM/23eec7e43abb4d34a1e02fbac13bfa89.png?resizew=409)
(1)求证:BF⊥CE.
(2)如图2,连结AF ,证明AF平分∠BFE.
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