综合与实践
在学习了“特殊平行四边形”后,兴趣小组的同学发现了这样一个问题:如图1,已知正方形
,E为对角线
上一动点,过点
作垂直于
的射线
,点
在射线
上,且
,连接
.通过观察图形,直接写出
与
的数量关系: .
(2)【类比探究】
兴趣小组的同学在探究了正方形中的结论后,将正方形换成矩形继续探究.如图2,已知矩形
,
,
,
为对角线
上一动点,过点
作垂直于
的射线
,点
在射线
上,且
,连接
.请判断线段
与
的数量关系,并说明理由.
(3)【拓展应用】
在(2)的条件下,点E在对角线
上运动,当四边形
为轴对称图形时,请直接写出线段
的长: .
在学习了“特殊平行四边形”后,兴趣小组的同学发现了这样一个问题:如图1,已知正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb11667abcb2759f301391b9850352be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb11667abcb2759f301391b9850352be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f6218fe7c62cd2dd2b7c70b8f91a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4eccda4edcee29a5f15609e85106df.png)
(2)【类比探究】
兴趣小组的同学在探究了正方形中的结论后,将正方形换成矩形继续探究.如图2,已知矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4630b9ca3d20635161fa8fbf812b9128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26ad70d2b3aac8604834d57dfc59bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb11667abcb2759f301391b9850352be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb11667abcb2759f301391b9850352be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f6218fe7c62cd2dd2b7c70b8f91a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
(3)【拓展应用】
在(2)的条件下,点E在对角线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef48918ed426d68d64591b866998a10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4eccda4edcee29a5f15609e85106df.png)
更新时间:2024-05-23 00:47:03
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在矩形ABCD中,点M在DC上,AM=AB,且
,垂足为N.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/18/57a97038-63ea-47ea-9565-6aa03e4edb62.png?resizew=165)
(1)求证:
;
(2)若AD=3,AN=4,求四边形BCMN的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a9bd800bdf8f09e56bb8c9de37de34.png)
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(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceba1cab8a266c6e67ffecbe5bcd9383.png)
(2)若AD=3,AN=4,求四边形BCMN的面积.
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,在
中,
,
,AE、AD分别是中线和高,
.
![](https://img.xkw.com/dksih/QBM/2020/3/6/2413938568527872/2415112338186240/STEM/38cf77a51006400aa6bfa1d32a45261b.png?resizew=172)
(1)求
的度数;
(2)若
,
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640e9e7c56e8eeda044fb55396088816.png)
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90026b96116424a245b335b1adb886b.png)
(2)若
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解答题-证明题
|
适中
(0.65)
【推荐1】如图,在
中,
,D为
上任意一点(不与点A、B重合),过点D作
,
,分别交
、
于点E、F,连接
.
的形状,并证明你的结论;
(2)若
,
,求
的长.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce84f6062f12bf6ef42d7b733cd2248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaead91b4b6febfcdd6f995d81e550.png)
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解答题-问答题
|
适中
(0.65)
名校
【推荐2】如图,矩形
的边
在
轴上,
为对角线
,
的交点,点
,
的坐标分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/24/55ce0935-7951-474c-a685-77286d305fcf.png?resizew=169)
(1)反比例函数
在第二象限的图象经过
点,求这个函数的解析式;
(2)点
是否在函数
的图象上?说明理由;
(3)一次函数
的图象经过点
,点
,根据图象直接写出不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/24/55ce0935-7951-474c-a685-77286d305fcf.png?resizew=169)
(1)反比例函数
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(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cec401b13d837b0cc8040d15a7a37f.png)
(3)一次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bb22b9722cbbca2802610d6e58554e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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解答题-作图题
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适中
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【推荐1】如图,在平面直角坐标系
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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解答题-应用题
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适中
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【推荐2】某车站实行智能通道闸机检票.如图是一个智能通道闸机两闸翼伸出时的截面图,扇形
和
是闸机的两闸翼,两闸翼成轴对称
和
均垂直于地面,扇形的圆心角
,半径
,点A与点D在同一水平线上,且它们之间的距离为
.
与
之间的距离(参考数据:
,
,
);
(2)经实践调查,一个智能闸机的平均检票速度是一个人工检票口平均检票速度的2倍,180人的团队通过一个智能闸机口比通过一个人工检票口可节约3分钟,求一个智能闸机平均每分钟检票通过的人数.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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(2)经实践调查,一个智能闸机的平均检票速度是一个人工检票口平均检票速度的2倍,180人的团队通过一个智能闸机口比通过一个人工检票口可节约3分钟,求一个智能闸机平均每分钟检票通过的人数.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在△ABC中,AB=AC,⊙O是△ABC的外接圆,点D在⊙O上,连接AD,过点B作BE∥AD,交⊙O于点E,延长DC、BE交于点F.求证:
(1)DB=DF;
(2)四边形AEFD是平行四边形.
(1)DB=DF;
(2)四边形AEFD是平行四边形.
![](https://img.xkw.com/dksih/QBM/2021/10/26/2837415850762240/2839565604323328/STEM/c17687dadf5949afa4f6dfc835e8186b.png?resizew=253)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,四边形
是边长为1的正方形,点
在
边上运动,且不与点
和点
重合,连接
,过点
作
交
的延长线于点
,连接
交
于点
.
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897136431497216/2981173642592256/STEM/297d43ab-0fa3-42f6-b212-4690c24ecec1.png?resizew=166)
(1)求证:
;
(2)当
是
的中点时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897136431497216/2981173642592256/STEM/297d43ab-0fa3-42f6-b212-4690c24ecec1.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5259d8d5118634045dc7545508cb8e56.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
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