如图,在矩形
中,
,动点
分别从点
同时出发,点
以
的速度向点
移动.点
以
的速度向点
移动.当点
运动到点
停止时,点
也随之停止运动.问几秒后,点
和点
的距离是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e1ae91ea0d5dd622b3663706e692ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/779cc5dee71f797e78288c18f0576371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e478787ebfeb68a5a7594dbd9eecd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79789686104cab147c239d152271e076.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/ebc2d9b900111188aca83126dff97f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/acc290b44635265137fdf13146b6a6d9.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/f3e1ae91ea0d5dd622b3663706e692ed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/90b79597-1def-42b8-a865-eb4b40b33446.png?resizew=152)
更新时间:2023-12-15 15:39:27
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,
,
,
,将
沿射线DE的方向以2cm/秒的速度平移,在平移过程中,是否存在某个时刻t,使
成为等腰三角形,若存在,请求出t值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9a8212937b8f53f97ee2576cca7eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fbc372e97cd951e911f4f998ec5e829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8346541ec68f4c43abb6628a4f6d62cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://img.xkw.com/dksih/QBM/2019/11/13/2333009706868736/2333093031518208/STEM/60bc4204158445dfb0e8cfe1df91c6b9.png?resizew=186)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,矩形ABCD中,AB=2 cm,BC=3 cm,点E从点B沿BC以2 cm/s的速度向点C移动,同时点F从点C沿CD以1 cm/s的速度向点D移动,当E,F两点中有一点到达终点时,另一点也停止运动.当△AEF是以AF为底边的等腰三角形时,求点E运动的时间.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/2/1ab1dd8c-062b-43f3-98f5-460451433cef.png?resizew=207)
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适中
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【推荐3】如图,在△ABC中,∠B=90°,AB=6cm,BC=8cm.点P从A开始沿边AB向点B以1cm/s的速度移动,与此同时,点Q从点B开始沿边BC向点C以2cm/s的速度移动.点P,Q同时出发,当点Q运动到点C时,两点停止运动,设运动时间为t秒.
![](https://img.xkw.com/dksih/QBM/2022/3/24/2943053261160448/2943660004671488/STEM/6902be908262457aa1f76c96a463627b.png?resizew=101)
(1)填空:BQ= cm,PB= cm.(用含t的代数式表示)
(2)当t为几秒时,△PBQ的面积等于5cm2?
(3)是否存在某一时刻t,使四边形APQC的面积等于△ABC面积的
?如果存在,求出t的值,如果不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2022/3/24/2943053261160448/2943660004671488/STEM/6902be908262457aa1f76c96a463627b.png?resizew=101)
(1)填空:BQ= cm,PB= cm.(用含t的代数式表示)
(2)当t为几秒时,△PBQ的面积等于5cm2?
(3)是否存在某一时刻t,使四边形APQC的面积等于△ABC面积的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐2】如图,在平行四边形
中,
,
,
.动点
从点
出发沿
以
速度向终点
运动,同时点
从点
出发,以
速度沿射线
运动,当点
到达终点时,点
也随之停止运动,设点
运动的时间为
秒.
;
(2)当
时, 求t的值;
(3)请问是否存在t的值,使得A,B,P,Q为顶点的四边形为平行四边形? 若存在,求出t的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284e282bb1d9fbf8634b3506ee5358ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.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/2edc7f82ecfc3b7ff5b361f0499258c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/601f8d64ea83a1decb85dd411525e3bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf757b473eb160e42173982184ac5b9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902f24325565a9dd95128a633a240da2.png)
(3)请问是否存在t的值,使得A,B,P,Q为顶点的四边形为平行四边形? 若存在,求出t的值;若不存在,请说明理由.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,矩形
中,
,
,点
从点
出发沿
以
的速度向点
移动;点
从点
出发沿
以
的速度向点
移动.设运动时间为
秒.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/043b324a-e409-443d-86a1-a0a2af2a1d65.png?resizew=273)
(1)当
时,
的面积为
.
(2)在运动过程中
的面积能否为
?如果能,求出
的值,若不能请说明理由;
(3)运动过程中,当点
,
,
,
四个点恰好在同一个圆上时,求
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a674be86c785995898ec30d6799568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ca8c9e1c0aedffcd3a6e734932e944.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/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f051275aa34c90fd6957973f6640753.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/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171e02f78e30ca17469c7ec007dd8db3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/043b324a-e409-443d-86a1-a0a2af2a1d65.png?resizew=273)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b42beec389982a69a715ba64d4e684a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46dd926f200fa1b7749c87aeb90b9c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7253bf413f68354e6a9d629a98bc35.png)
(2)在运动过程中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46dd926f200fa1b7749c87aeb90b9c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e086b07578201f26df1319ef67831788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)运动过程中,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】(1)如图1,在矩形
中,
,
,E,F分别是
,
上的点,连接
,
,
于点G,则
______;
(2)如图2,在矩形
中,
,
分别交
,
于点E,F,
分别交
,
于点H,G.求证:
;
(3)如图3,在
中,
,点D在边
上,连接
,过点C作
于点E,
的延长线交
边于点F.若
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f87b02b744534ae1ed700d21fcceb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fb8b625bbd261f00bb007516796c2bd.png)
(2)如图2,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de64cbea23ec8a57a4705d9f16297d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.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/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ace4bbfac49cd8ebd405f385d5813e2.png)
(3)如图3,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497846628a41a9bc750a645e045afb47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5697930f9fde7109b23307db66c9c7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/91272e0e-3f72-4b79-9e1e-e142f6e3b5bb.png?resizew=511)
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