如图,在矩形
中,
,点
以
的速度从顶点
出发沿折线
向点
运动,同时点
以
的速度从顶点
出发沿边
向点
运动.当其中一个动点到达末端停止运动时,另一点也停止运动.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/74828af8-06f5-4169-bcfc-05f5f9fd3dc5.png?resizew=81)
(1)若运动时间为
秒,则
______________,
_____________.
(2)两动点运动几秒,使四边形
的面积是矩形
面积的
?
(3)是否存在某一时刻,点
与点
之间的距离为
?若存在,求出运动所需的时间;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/b25801b63eabb62231193a77c79a9183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc2d9b900111188aca83126dff97f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd66776565f049eb453c14fcaf79234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/6/74828af8-06f5-4169-bcfc-05f5f9fd3dc5.png?resizew=81)
(1)若运动时间为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1772209a569f87d0539b5d7871d0834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9985eaef9e31b243d5aaf89b71f66075.png)
(2)两动点运动几秒,使四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d96e428931b19cf639d3e0f26ebe23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
(3)是否存在某一时刻,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/6ebb146eb2bb253c5b9fe67f9f963c01.png)
23-24九年级上·广东江门·期中 查看更多[2]
广东省江门市广州大学台山附属中学教育集团2023-2024学年九年级上学期期中数学试题(已下线)清单04 与一元二次方程有关的动点问题 (7种题型解读(25题))-2023-2024学年九年级数学上学期期末考点大串讲(苏科版)
更新时间:2023-12-04 18:33:32
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在
中,
,
,
,点
从点
开始沿
边向点
以
的速度移动,同时点
从点
开始沿
边向点
以
的速度移动.当一个点到达终点时另一点也随之停止运动,设运动时间为
秒(
).
(1)当
为何值时,
的长度等于
;
(2)当
为何值时,以
,
,
为顶点的三角形与
相似?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e003d7db3696b33d8927c31d066a0ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6850a299395c314b8f8f2f8ca50c9895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b276eec990e6edaae4bd27440dd3eb.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d989a128e30a701dfff5592476a76bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/24/7c57ecc9-b407-4377-9904-96af9f976c7a.png?resizew=130)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9eed64d225267a58cd001db67e2a3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/15c0dbe3c080c4c4636c64803e5c1f76.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,在
中,
,点
从点
出发,以
的速度沿
向点
匀速运动,点
从点
出发,以
的速度沿
向点
匀速运动,当一个点到达终点时,另一点也停止运动.
的面积等于
面积的
?
(2)经过几秒后,
与
相似?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c49252c30067048cbefd56cd74bd52.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/ebc2d9b900111188aca83126dff97f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/2b9174c3b1324cf81098e42e0480bcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba70863115b0947e98214a7b2512167d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
(2)经过几秒后,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba70863115b0947e98214a7b2512167d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】如图,在
中,
,
,将
绕点
沿逆时针方向旋转
得到
.
(1)线段
的长是 ,
的度数是 ;
(2)连接
,求证:四边形
是平行四边形;
(3)求点
旋转到点
的位置所经过的路线的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b352fa3e781df195ceccca90c3932a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ec371d5dbc19d236bf8a1f084031e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7dc4df7105a0d376abd6efa5159b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb99c20237aca8ff2ba640c28fbc5b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/4/d38194f7-8e38-40b2-b705-c89ff561e6f1.png?resizew=215)
(1)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4195334905e2f190f958dbf5951456f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b02210cb6528fdaf2ebb66c7777191.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6af7757f9f41d515dd102936b8bfe7.png)
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.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,
平分
,交
于点C,
平分
,交
于点D,连接
平分
,交
于点F.
(1)请判断四边形
的形状,并说明理由;
(2)若
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76fa617f56348d06c9cbb5e87bb1aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d786ee723231d4ca87eb9d011a378b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee099a7c080b5c7407edb4925904fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7d19f963f7c803bcfcbb265ec6d4304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/9/8168220a-2f4b-4aaa-bbf4-f8083c186a52.png?resizew=195)
(1)请判断四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946822c0f11aeea196e8713df110ec53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61510c34c5795d7261569b4d09098271.png)
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ABCD中, AB=10,BC=5,点P为AB边上一动点(不与点A, B重合),DP交AC于点Q.
(1)当PD上AC时,求线段PA的长度;
(2)当点P在线段AC的垂直平分线上时, 求sin∠CPB的值.
(1)当PD上AC时,求线段PA的长度;
(2)当点P在线段AC的垂直平分线上时, 求sin∠CPB的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/12/21056dc5-3ad5-4cd1-a3ae-6155eaffc95e.png?resizew=172)
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解答题-作图题
|
适中
(0.65)
【推荐2】如图,方格纸中每个小正方形的边长均为1,线段AB的两个端点均在小正方形的顶点上.
(1)在图1中画出以线段AB为一边的矩形ABCD(不是正方形),且点C和点D均在小正方形的顶点上;
(2)在图2中画出以线段AB为一腰,底边长为
的等腰三角形ABE,点E在小正方形的顶点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/26/2c3b7e4a-9253-4883-8df0-ba947e5becec.png?resizew=291)
(1)在图1中画出以线段AB为一边的矩形ABCD(不是正方形),且点C和点D均在小正方形的顶点上;
(2)在图2中画出以线段AB为一腰,底边长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
您最近一年使用:0次