如图1,已知
,在射线
上分别截取点B、C,使
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/5b708d21-6a65-4b0f-9e3a-f6973e61d544.png?resizew=433)
(1)求证:
;
(2)如图2,以
为直径在
的上方作一个半圆,点D为半圆上的一个动点,连接
交
于点E.
①当
时,求
的长.
②在线段
上取一点F,连接
交
于点G,若
,当点D在半圆
上从点B运动到点C时,求点G经过的路径长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3181e58f09e9fec4e43e422b82831b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b14fa212bbddd28310d463fcdef7e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55d2649a844e8619de4663a03c233f0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/5b708d21-6a65-4b0f-9e3a-f6973e61d544.png?resizew=433)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
(2)如图2,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e223e3b657fe3f5856303f80a276fa0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
②在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a2e63e2e76266d606946a11c1d75de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
2023·广东广州·一模 查看更多[2]
更新时间:2023-04-15 12:44:03
|
相似题推荐
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】如图1,已知
,
是等边三角形,点
为射线
上任意一点(点
与点
不重合),连结
,将线段
绕点
逆时针旋转
得到线段
,连结
并延长交射线
于点
.
(1)如图1,当
时,
________
,猜想
________
;
(2)如图2,当点
为射线
上任意一点时,猜想
的度数,并说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b831f8d32299736fed7ffab8b2d44a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3d238d7b78d751adbd21c570787d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339e431ba85c88abac78a76defaed6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c60c200c841e974f0e5bc7e5e27d3a2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/15/004a3740-68f6-4cd0-9a30-11f683bb5ff5.png?resizew=231)
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【推荐2】在菱形ABCD中,P是直线BD上一点,点E在射线AD上,连接PC,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/fada9891-375b-4b32-a240-039a4a7bcd26.png?resizew=473)
(1)如图(1),当∠BAD=90°时,连接PE,交CD于点F,若∠CPE=90°,求证:PC=PE;
(2)当∠BAD=60°时,连接PE,CE,PC交AE于点F,∠CPE=60°,AC=CE=4.
①如图(2),若点P在线段BD的延长线上,求BP的长;
②如图(3),若点P在线段DB的延长线上,直接写出BP的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/fada9891-375b-4b32-a240-039a4a7bcd26.png?resizew=473)
(1)如图(1),当∠BAD=90°时,连接PE,交CD于点F,若∠CPE=90°,求证:PC=PE;
(2)当∠BAD=60°时,连接PE,CE,PC交AE于点F,∠CPE=60°,AC=CE=4.
①如图(2),若点P在线段BD的延长线上,求BP的长;
②如图(3),若点P在线段DB的延长线上,直接写出BP的长.
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【推荐1】在平面直角坐标系
中,已知抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c44f12ece8a44b5943afbec664e7d40e.png)
(1)求抛物线顶点Q的坐标(用含b的代数式表示);
(2)抛物线与x轴只有一个公共点,经过点
的直线
与抛物线交于点A,B(点A在点B的左侧),与x轴交于点C.
①判断
的形状,并说明理由;
②已知
,设
的外心为M,当点C在线段
上时,求点M的纵坐标m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c44f12ece8a44b5943afbec664e7d40e.png)
(1)求抛物线顶点Q的坐标(用含b的代数式表示);
(2)抛物线与x轴只有一个公共点,经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b311586e7364e22e018c152a6c91a5.png)
①判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f97befff57b4c517fde474501ab5e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
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解答题-作图题
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【推荐2】△ABC与点O在10×10的网格中的位置如图所示
(1)画出△ABC绕点O逆时针旋转90°后的图形;
(2)若⊙M能盖住△ABC,则⊙M的半径最小值为 .
(1)画出△ABC绕点O逆时针旋转90°后的图形;
(2)若⊙M能盖住△ABC,则⊙M的半径最小值为 .
![](https://img.xkw.com/dksih/QBM/2019/3/4/2154517758181376/2169056990912512/STEM/d9902f5d66554ac4a41c5b2bef7e5a9b.png?resizew=182)
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【推荐1】如图,抛物线
经过点
,与
轴交于点
,点
是抛物线上一动点.
(1)求抛物线对应的函数表达式;
(2)如图,当点
在直线
上方时,过点
作
垂直于
轴于点
,交直线
于点
.若
,求此时点
的坐标:
(3)抛物线在第一象限的部分记为
,现将
绕点
逆时针旋转
度
,使得
上每一点始终在第一象限,求点
所经过的路经长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93126143dd73213bb958b8b13fc3759d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/9/3d37673b-d68d-4c2a-a181-0e2717613efb.png?resizew=472)
(1)求抛物线对应的函数表达式;
(2)如图,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3f7b5e484e3d4e1231627ffaa0d3ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)抛物线在第一象限的部分记为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f60000922d27d79cb83ccb6a49d1ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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(0.4)
【推荐2】在一平面内,点
是
上的点,连接
,
、
、
是三条定长线段,将四条线段按如图
顺次首尾相接,把
固定,让
绕点
从
开始逆时针旋转角
到某一位置时,
,
将会跟随到相应的位置,且点
始终保持在
上方.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/49df0da9-7a23-40e8-ac36-19d374f6cef7.png?resizew=414)
(1)若点
在
上方且
时,求
的度数(用含
的式子表示);
(2)当
旋转到如图
位置时,连接
,
与
交于点
,连接
,若
,请判断
与
的位置关系,并说明理由;
(3)若
的半径为
,
,
,连接
.
①当点
落在
的延长线上时,求线段
扫过的面积(参考数据:
);
②当点
与点
的距离最大时,求点
到
的距离;
③当点
在
上方,且
时,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813472fe85905302843cb3aadec9c8ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/49df0da9-7a23-40e8-ac36-19d374f6cef7.png?resizew=414)
(1)若点
![](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/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542b045d3bb9a39139b5c0ca97cabdd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e096f87473d0b6b6d531ba22e5a7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
①当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/287a75ae2b297ccc8f41e1daf6bf1a20.png)
②当点
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
③当点
![](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/4bd6a2b112facda441f4e34bf5c145fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ffdb117605acb86699952e445db2aa.png)
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名校
【推荐1】如图,正方形ABCD中, O为BD中点,以BC为边向正方形内作等边
BCE,连接并延长AE交CD于F,连接BD分别交CE,AF于G ,H ,下列结论:①∠CEH=45°;②GF//DE;③2OH+DH=BD;④BG=
DG;⑤
△BEC : S△BGC=
.其中正确的结论是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6595597d25112f247753397d25bf5080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc4bb423ae1aab250af387254a12b9e.png)
![](https://img.xkw.com/dksih/QBM/2019/12/11/2352993939398656/2353720450629632/STEM/5eaa86c46f13454693a3cf11cb69af9a.png?resizew=170)
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解答题-作图题
|
较难
(0.4)
名校
【推荐2】如图,
为
的外接圆,
,
,点D为
的中点,连接
,作
的角平分线交
于点E.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/17/99d28dc0-fe42-4a8e-a031-6a525d8c08c8.png?resizew=127)
(1)尺规作图:作出线段
;(保留作图痕迹,不写作法)
(2)连接
,求证:
;
(3)若
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/17/99d28dc0-fe42-4a8e-a031-6a525d8c08c8.png?resizew=127)
(1)尺规作图:作出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce25e95729c34d26e482512d36dd89b1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ca3a231d2ecb2d712a159fc51512c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-问答题
|
较难
(0.4)
【推荐3】如图,在
中,∠ACB=90°,AB=10,AC=6,点P从点B出发,以每秒5个单位长度的速度沿BC向点C运动,同时点M从点A出发,以每秒6个单位长度的速度沿AB向点B运动,过点P作PQ⊥AB于点Q,以PQ、MQ为邻边作矩形PQMN,当点P到达点C时,整个运动停止.设点P的运动时间为t(t>0)秒.
(1)求BC的长;
(2)用含t的代数式表示线段QM的长;
(3)设矩形PQMN与
重叠部分图形的面积为S(S>0),求S与t之间的函数关系式;
(4)连结QN,当QN与
的一边平行时,直接写出t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
(1)求BC的长;
(2)用含t的代数式表示线段QM的长;
(3)设矩形PQMN与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(4)连结QN,当QN与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2021/1/8/2631789785923584/2638600863211520/STEM/4a98da6e-7adf-49b3-b09d-fbb386061449.png)
您最近一年使用:0次