若
,我们则称
是
的“绝配角”.例如:若
,
,则
是
的“绝配角”,请注意:此时
不是
的“绝配角”.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/ace47758-f48d-4acf-b0e9-e07d40f1afc1.png?resizew=563)
(1)如图1,已知
,在
内存在一条射线
,使得
是
的“绝配角”,此时
______:(直接填写答案)
(2)如图2,已知
,若平面内存在射线
、
(
在直线
的上方),使得
是
的“绝配角”,
与
互补,求
大小:
(3)如图3,若
,射线
从
出发绕点O以每秒
的速度逆时针旋转,射线
绕点O从
出发以每秒
的速度顺时针旋转,
平分
,
平分
,运动时间为t秒(
).
①当
时,
是
的“绝配角”,求出此时t的值:
②当
时,
______时,
是
的“绝配角”(直接填写答案).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/487588103f75bcddb9b86a61cc00bb2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59391ad0a68d994843e15600f74a280e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d18d538d0a860cc096309cc557cb8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/ace47758-f48d-4acf-b0e9-e07d40f1afc1.png?resizew=563)
(1)如图1,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021bc0ff7e36c9d6d70ddd2e51e8c04c.png)
(2)如图2,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eb76fe74cba30f7cbcde349ba80da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
(3)如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ca8efe3c3e3648ffefa4e29e6cf51b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aee6e4e9350a2665df8597ff8045bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb0aa8a61380228e285f3b5c7b74c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e78c8909f841da5022bbe3682d377295.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ba5b30f8b1eb27bb462f33bd14d7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360bf54642118f681beab977dcef8b30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
更新时间:2024-01-26 07:47:40
|
相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】如图,在数轴上有一点
,在
的左边距
点
个单位长度处有一点
,原点为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/27/e6d30d89-556d-42f4-a699-34bd367ef8e2.png?resizew=224)
(1)点
表示的数为______,线段
的中点对应的数为______;
(2)点
、
同时出发,
点以
个单位长度
秒的速度向右运动、
点以
个单位长度
秒的速度向左运动,当运动多少秒时,
、
两点能相遇;
(3)现有动点
、
和一定点
,点
在数轴上所表示的数为
,
、
分别从点
、
同时出发,分别以
个单位长度
秒、
个单位长度
秒的速度先向点
运动,到达点
后再向其相反方向运动,在运动过程中,当
时,求时间
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e61680ffc6f940bd5b8afda3ae9c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/27/e6d30d89-556d-42f4-a699-34bd367ef8e2.png?resizew=224)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4333bb203d02814c146ed587b69ea69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4333bb203d02814c146ed587b69ea69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)现有动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4333bb203d02814c146ed587b69ea69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4333bb203d02814c146ed587b69ea69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd105c7b98ffd96f25420807950408f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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名校
【推荐2】如图1,直线
,AB平分
,过点B作
交AN于点C﹔动点E、D同时从A点出发,其中动点E以
的速度沿射线AN方向运动,动点D以
的速度运动;已知
,设动点D,E的运动时间为t.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/a9479e8a-b4d0-430c-a42a-7041bb068392.png?resizew=341)
(1)当点D沿射线AM方向运动,满足
,试求运动时间t的值;
(2)当点D在射线AM或射线AM的反向延长线上运动时,是否存在某个时间t,使得
与
全等?若存在,请求出时间t的值:若不存在,请说出理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59747cee312ee5140643428cae79efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358c69b4f6c350c35d19d33c69f2a2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2720b26d28a75aa56d6a686e0987be6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ba95116dc790b935d65bf540799cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bf2ed4e49655ce765ba6ffbb6c7d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafddfd80f69337909f6eac0f0dbfd59.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/a9479e8a-b4d0-430c-a42a-7041bb068392.png?resizew=341)
(1)当点D沿射线AM方向运动,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db12313b29879193d434f4fa6cb0ed9.png)
(2)当点D在射线AM或射线AM的反向延长线上运动时,是否存在某个时间t,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f517953a21c2a45fd8465072c44bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2657e02314469ad2b13d31dce41b4343.png)
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名校
【推荐1】如图,
是
的角平分线,
,
是
的角平分线,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0223faf49054446a69e81c117641fb4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/17/55abdd90-c6bb-48e1-a6ef-d2a8cd3638aa.png?resizew=595)
(1)求
;
(2)
绕
点以每秒
的速度逆时针方向旋转
秒(
),
为何值时
;
(3)射线
绕
点以每秒
的速度逆时针方向旋转,射线
绕
点以每秒
的速度顺时针方向旋转,若射线
同时开始旋转
秒(
)后得到
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca7c25d51f839c6dc51a0a8e96d2b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0223faf49054446a69e81c117641fb4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/17/55abdd90-c6bb-48e1-a6ef-d2a8cd3638aa.png?resizew=595)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f55c6ac896ab4277fae2230a6e10b0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f55c6ac896ab4277fae2230a6e10b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/798fb30c165c5c82d174236acd193041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f83727e91aa93cdcb2934b28dac8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b208cf7a55ad219500c4f8b99adba0.png)
(3)射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f9c270c34c12a3253fcb14a70255cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/798fb30c165c5c82d174236acd193041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d04d95caa45c017803694671fbcac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2afe12bd6c755b0a277c157caca9e4cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147ef3b3af1bcb8f28f67704ea9ae045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】沿河县某初中七年级的数学老师在课外活动中组织学生进行实践探究,用一副三角尺(分别含
,
,
和
,
,
的角)按如图所示摆放在量角器上,边PD与量角器
刻度线重合,边AP与量角器
刻度线重合,将三角尺ABP绕量角器中心点P以每秒
的速度顺时针旋转,当边PB与
刻度线重合时停止运动,设三角尺ABP的运动时间为t秒.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/20/eb8f40b3-92ce-4fe8-bad8-535b8adffde5.png?resizew=311)
(1)当
时,
__________
;
(2)若在三角尺ABP开始旋转的同时,三角尺PCD也绕点P以每秒
的速度逆时针旋转,当三角尺ABP停止旋转时,三角尺PCD也停止旋转.
①当t为何值时,边PB平分
;
②在旋转过程中,是否存在某一时刻使
,若存在,请求出t的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235d495d88b8e51f89e2e4da27328025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb0aa8a61380228e285f3b5c7b74c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/20/eb8f40b3-92ce-4fe8-bad8-535b8adffde5.png?resizew=311)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a495c197fcbacb8c109aa0060525a371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ed5dc05a32116c94417dcb2d721868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
(2)若在三角尺ABP开始旋转的同时,三角尺PCD也绕点P以每秒
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1653dd6d530c2e15ef1f073760ae5ad7.png)
①当t为何值时,边PB平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd601617f0ab200d5c80c37ab41d7323.png)
②在旋转过程中,是否存在某一时刻使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f88ef9427c10859c90954a1ccf74ad.png)
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名校
【推荐1】如图1,在平面直角坐标系中,
,且满足
,过
作
轴于
.
(1)求
的面积.
(2)若过
作
交
轴于
,且
分别平分
,如图2,求
的度数.
(3)在
轴上存在点
使得
和
的面积相等,请直接写出
点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065edbbe509796586d5f49435102ec18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65c75837170755152979264b9fe306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02db4a8c065ddf418ce67b8a98a29c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
(2)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd05a551ca00abcdecd3106de0e50e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e88d8672e8521e27058252f51000281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561c994a7a5757c47ca55fe46a1bf55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd1bc0388e7fad3e849ca39c67f5034.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b280088a8f97b52c2145bc709434e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/2df854c4-b8da-49c0-bfd8-4eafead7b4d6.png?resizew=525)
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【推荐2】如图,直线
,点E在直线
上,点G在直线
上,点F在直线
之间.
(1)如图1,若
,求
的度数;
平分
,
平分
的反向延长线与
交于点H,求证
;
平分
,当
时,
.(直接写出结果)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a13e1565e5977304abe033ea80742f4.png)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcda510ff1cb8ca4685378748c1c1cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381783481ea7e523cc6c6c80f9158a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5481c3c38cf999b4dacada15ea517b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6d8edcb62d27537d654abe00725e4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99f56cb22415a96a540dced4dd7c801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6365d34c59439c204a8a3693c6e5bc9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5481c3c38cf999b4dacada15ea517b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a71e5a3a09067ee2d6e331d7ddd6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5736afeea5d448920daf96685cfb419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4878fe0e3e388a8ea94cec073a797514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a360cc720620b90583dab0f1552d5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb873a18a6c5f4bf06d7c4385610a813.png)
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【推荐1】点O在直线
上,
,
,
与
重合.
(1)如图1所示:
______°;
(2)如图2所示:过A点作
,连接
,求
的度数;
(3)如图3所示:若
绕O点以
每秒的速度逆时针旋转,同时
在
的左侧某处以
每秒的速度顺时针旋转.
为
的角平分线,
与
重合后再过m秒与
重合,若整个运动过程中,
恒成立,求k与m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e54af1165f4e35504e6376e716c9028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d550735bf76ebf0cfba48994e55349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/29/2684434b-a08f-4d01-8055-190c888fbb6b.jpg?resizew=539)
(1)如图1所示:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2979f64c85f82d8975d73ee1c342de.png)
(2)如图2所示:过A点作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c584d220fe1d2f634658926c6f378b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a24bc52736ff60174d8695266453f99.png)
(3)如图3所示:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2557547eecdc826b8282058802d217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1653dd6d530c2e15ef1f073760ae5ad7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654c79a470d5af5e0a34fd9233da5118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307bd991211ec79b47a4be52933bb8e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2460507a462453e084eaf70a7d867e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307bd991211ec79b47a4be52933bb8e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d775dc4aa2d5a62fd81fe22949313fd.png)
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较难
(0.4)
【推荐2】如果两个角的差等于
,就称这两个角互为“兄弟角”.其中一个角叫做另一个角的“兄弟角”.例如
,
,
,则a和β互为“兄弟角”,即a是β的“兄弟角”,β也是α的“兄弟角”.
(1)已知
和
互为“兄弟角”.
,且
和
互补,求
的度数.
(2)在
中,
,
是
的角平分线,
①如图1,点P在射线
上,
平分
,与射线
交于点N,若
与
互为“兄弟角”,求
的度数.
②如图2,若
,射线
平分
且与射线
交于点N,若
与
互为“兄弟角”,则
的度数为 .
③如图3,若
于点P,
、
相交于点F,若
与
互为“兄弟角”,直接写出
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2573fbb43949ec6ba7c0fba84b10876b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e336e9716234b34fb4814e1fc74b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13b448ba9e77394b15633bec73bdd9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/5/8ee6ee41-77ab-4831-8141-54edeb6641cc.png?resizew=377)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e5e24c5752a140a1dfb5dbc3dedabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9463cdd7f187734678e4fb53d73b2865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
①如图1,点P在射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bd06fe6c593497916181bf13a5fd14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b25f247281afb586b3c686687eae858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
②如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df055e9b82f0590171adf25dd97df6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167d31eb8432b5c0364316e5048c23dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bd06fe6c593497916181bf13a5fd14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b25f247281afb586b3c686687eae858.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
③如图3,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2e118d8156830746055c1b2e759ab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a019aeda16984ccf31f7294c216a57c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcae9d00980803e5955228d1e217abe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
您最近一年使用:0次