如图,
,
是线段
上的两个点,且
,点
是线段
的中点,
.
(1)求线段
的长;
(2)若
是线段
上一点,满足
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/766590c9ec5f0ba5da61a76609370d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527f26a3eb27adc96df06b64d154f391.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/73da8ad3-cbc7-484b-b8dc-688c41530625.png?resizew=433)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d79fcf859dd4a91bc077b18c124b9ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
更新时间:2024-01-22 17:35:04
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,直线上有A,B,
,
四个点,
,
,
.
(1)线段
______
(2)动点P,Q分别从A点,
点同时出发,点P沿线段
以
/秒的速度,向右运动,到达点
后立即按原速向A点返回;点Q沿线段
以
/秒的速度,向左运动;P点再次到达A点时,两点同时停止运动.设运动时间为t(单位:秒)
①求P,Q两点第一次相遇时,运动时间t的值;
②求P,Q两点第二次相遇时,与点A的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/510634e49198fc429d942d00fa5446ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b218a9b2fae18ba923c3ee03ee0922fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae892a94274b2db9d99189cc39cd2f19.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/7fc2d08a-aca3-4db2-8d10-9f5e42276fd3.png?resizew=407)
(1)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
(2)动点P,Q分别从A点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976260cbf5e30856d4fd37a4b0a671a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
①求P,Q两点第一次相遇时,运动时间t的值;
②求P,Q两点第二次相遇时,与点A的距离.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,点
是线段
的中点,点
是线段
的中点,且
.
(1)若
,求
的长;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7af5c4757c85a5b09aa4d14caa030b1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea147ada4f0aefdd3808a6a1133792eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/a4d6750f-a73c-492d-a514-65d20d760d6a.png?resizew=254)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,已知平面直角坐标系内
,
,
、
两点关于
轴对称.
(1)点
的坐标为_________,点
的坐标为_________.
(2)动点
、
分别从
点、
点同时出发,沿直线
向右运动,同向而行,
点的速度是每秒
个单位长度,
点的速度是每秒
个单位长度,设
、
的运动时间为
秒;
①当
的面积为
时,求
的值;
②在平面直角坐标系中,存在一点
,且满足
,则
_________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2740272e8a3a961d526a1a3f714e06e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f203ea5c06830e9b497b4013b4a8cd.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/d053b14c8588eee2acbbe44fc37a6886.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.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/36a1b09c653185842513e24ebba60bb3.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
②在平面直角坐标系中,存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f49bbb74b238bc3eb0ae0f8fd68d47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beac20066de3e7e1d81872c7e330b76e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】如图,已知CA⊥BA
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/4a1fc8b9-83a5-4b9e-a453-67b45ac9f3ee.png?resizew=143)
(1)画图:①延长BA到D,使AD=BA,连接CD;
②过点A画AE∥BC,AE与CD相交于点E;
③过点B画BF⊥CD,交DC的延长线于点F.
思考:图中有______条线段,它们的长度表示点到直线的距离;
(2)度量:
①你度量的哪些量?______;
②通过度量你发现:______.(写一条发现即可)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/4a1fc8b9-83a5-4b9e-a453-67b45ac9f3ee.png?resizew=143)
(1)画图:①延长BA到D,使AD=BA,连接CD;
②过点A画AE∥BC,AE与CD相交于点E;
③过点B画BF⊥CD,交DC的延长线于点F.
思考:图中有______条线段,它们的长度表示点到直线的距离;
(2)度量:
①你度量的哪些量?______;
②通过度量你发现:______.(写一条发现即可)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知C为线段AB的中点,E为线段AB上的点,点D为线段AE的中点.
(1)若线段AB=a,CE=b,|a﹣15|+(b﹣4.5)2=0,求a,b的值;
(2)如图1,在(1)的条件下,求线段DE的长;
(3)如图2,若AB=15,AD=2BE,求线段CE的长.
(1)若线段AB=a,CE=b,|a﹣15|+(b﹣4.5)2=0,求a,b的值;
(2)如图1,在(1)的条件下,求线段DE的长;
(3)如图2,若AB=15,AD=2BE,求线段CE的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/9f8ce843-7810-412d-b3d9-906ea90de89f.jpg?resizew=399)
您最近一年使用:0次
【推荐2】如图,数轴上的点
所表示的数分别为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51faf5960d747b92a007a6c9a2d0d911.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/b9f51de7-dcdb-4774-be8e-bc012ea9f6c7.png?resizew=401)
(1)
的长为
(2)若点
为
的中点,则点
表示的数为___:
(3)将一枚棋子放置在点
处,让这枚棋子沿数轴在线段
上往复运动(即棋子从点
出发沿数轴向右运动,当运动到点
处,随即沿数轴向左运动,当运动到点
处,随即沿数轴向右运动,如此反复…),并且规定棋子按照如下的步骤运动:第
步,从点
开始运动
个单位长度至点
处:第
步,从点
继续运动
t 个单位长度至点
处;第
步,从点
继续运动
个单位长度至点
处….
例如:当
时,点
,的位置如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/02af4f99-ad4f-4587-834b-34a77ced2277.png?resizew=400)
解决如下问题:
①如果
,那么
表示的数为 ;
表示的数为 ;线段
=
②如果
,且点
表示的数为
,那么
③如果
,且线段
,那么请你求出
的值 ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51faf5960d747b92a007a6c9a2d0d911.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/b9f51de7-dcdb-4774-be8e-bc012ea9f6c7.png?resizew=401)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)将一枚棋子放置在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6b7b05dd9dc832f56c9267003b669b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c704efae7ad08fa9778c5cc0db83078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae863e7a1f1fed09f1075de4a817c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc7e6b107c09e656bc4dea784c14719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f52b152eaf63415b10ed786a58a2747.png)
例如:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66884efff7400f92b530d69d029778d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df447bc6f27f17da07c5dfc9be80c6c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/1/02af4f99-ad4f-4587-834b-34a77ced2277.png?resizew=400)
解决如下问题:
①如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15a13b4190ac3d5feaee27a4c97b21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6b7b05dd9dc832f56c9267003b669b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae863e7a1f1fed09f1075de4a817c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354b22eb85a1ff916381c2efa7fad3c0.png)
②如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4132c40136b6ecc92f7231a20c1e2f12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f52b152eaf63415b10ed786a58a2747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
③如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c598d9af33139205c69a18297e43c2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9144a69623f237d9d47e19c71f359ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次