矩形
中,点
是
上一点,
,
,
,点
是
边上的动点,以
为一边作菱形
,使顶点
落在
上,连接
,则
的最小值为______ ,
面积的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6370d6c626bdabf1fc694501ee6c714f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430b77d8d2a99713b192dc729ddc2275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d10c226614733352b964859673344fe.png)
更新时间:2024-04-30 12:11:25
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【推荐1】如图,在
中,
,
,
为
边上一动点,且不与点
、点
重合,连接
并延长,在
延长线上取一点
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于点
,
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,
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_______ .
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解题方法
【推荐2】如图,在△ABC中,AB=AC=5,BC=
,D为边AB上一动点(B点除外),以CD为一边作正方形CDEF,连接BE,当△BDE面积最大时,正方形CDEF的边长为_____ .
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【推荐1】定义:
中,一个内角的度数为
,另一个内角的度数为
,若满足
,则称这个三角形为“智汇三角形”.在
中,
,
,
,
是
上的一个动点,连接
,若
是“智汇三角形”,则
的长是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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【推荐2】如图,在平面直角坐标系xOy中,半径为1的半圆O上有一动点B,点
,
为等腰直角三角形,A为直角顶点,且C在第一象限,则线段OC长度的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
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【推荐1】如图,在矩形ABCD中,AB=1,AD=3.①以点A为圆心,以不大于AB长为半径作弧,分别交边AD,AB于点E,F,再分别以点E,F为圆心,以大于
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CQ长为半径作弧,两弧交于点M,N,作直线MN交AP于点G,则OG长为________ .
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【推荐2】如图,在矩形
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在直线
上,点
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上,且
,点
为
边上一动点,则
的最小值为______ .
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【推荐1】如图,在菱形
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中点,F为
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【推荐2】如图,在菱形ABCD中,按以下步骤作图:分别以点C和点D为圆心,大于
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