在菱形
中,
,
,左右作平行移动的正方形
的两个顶点
、
始终在边
上.当点
到边
中点时,点
恰好在边
上.
(1)如图1,求正方形
的边长;
(2)假设点
与点
的距离为
,在正方形
作平行移动的过程中,正方形
与菱形
重叠部分的面积为
,求
与
的函数解析式,并写出它的定义域;
(3)连接
、
,当
是等腰三角形时,请直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7099026716ee1821dd7d9f157dc055f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/13/b5f9ad82-18dc-4c5a-8d32-4345ee71af87.png?resizew=397)
(1)如图1,求正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
(2)假设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0ae50d5993a332b5cddb022eaa6f1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93f5a2ed40bffc15b379b4dcc68d379c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
更新时间:2023-06-08 12:59:25
|
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解答题-计算题
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适中
(0.65)
名校
【推荐1】先化简,再求值:
(1)
,其中x=
(2)
,其中
(1)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(2)
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解答题-问答题
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适中
(0.65)
【推荐1】如图,在
中,
边的垂直平分线
交
于
,
边的垂直平分线
交
于
,
与
相交于点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)若
的周长为16cm,求
的长;
(2)若
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的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12225a1a1eda07908309f8100cc34726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f8eff113ca3f0d0200253c7c2f5a7a.png)
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解答题-证明题
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适中
(0.65)
【推荐2】如图,点E是
内一点,且
.
相等的角,并证明;
(2)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1d267eeb09c171c3e847f0597be31c.png)
(3)用等式表示线段
之间的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73b5895dd2421d90d49c3b2c9ba760c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1d267eeb09c171c3e847f0597be31c.png)
(3)用等式表示线段
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解答题-问答题
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适中
(0.65)
【推荐1】如图,
是
的直径,
是弦.
交
的延长线于点
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.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/7e854726-fa67-4187-bbce-9c0cd0529218.jpg?resizew=240)
(1)求证:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0000bb1e29af1b83f35e17f647a66d8c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/7e854726-fa67-4187-bbce-9c0cd0529218.jpg?resizew=240)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
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解答题-问答题
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适中
(0.65)
【推荐2】如图,抛物线
与
轴交于
,
两点,与
轴交于点
,抛物线的对称轴交
轴于点
.已知点
,
.
(2)若在抛物线的对称轴上存在一点
,使得
是以
为腰的等腰三角形,请求出所有满足题意的点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a9210db6a6c1f265cab9d6f6b9a1c89.png)
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(2)若在抛物线的对称轴上存在一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d00f161c7265da982e7654ae918b066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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解答题-证明题
|
适中
(0.65)
名校
【推荐3】探究题:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/91ddc86c-8ad0-4e37-9e66-a5b4801d2871.png?resizew=507)
【感知】
如图①,△ABC和△AED都是等腰直角三角形,∠BAC=∠DAE=90°,点B在线段AD上,点C在线段AE上,我们很容易得到BD=CE,不需要证明;
(1)【探究】
如图②,将△AED绕点A逆时针旋转α(0<α<90°),连接BD和CE,此时BD=CE是否依然成立?若成立,写出证明过程;若不成立,说明理由;
(2)【应用】
如图③,当△ADE绕点A逆时针旋转,使得点D落在BC的延长线上,连接CE;
①∠ACE的度数为 度;
②试说明线段BC、CD、CE之间的数量关系;并给出证明
③若AB=AC=
,CD=1,请直接写出线段DE的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/91ddc86c-8ad0-4e37-9e66-a5b4801d2871.png?resizew=507)
【感知】
如图①,△ABC和△AED都是等腰直角三角形,∠BAC=∠DAE=90°,点B在线段AD上,点C在线段AE上,我们很容易得到BD=CE,不需要证明;
(1)【探究】
如图②,将△AED绕点A逆时针旋转α(0<α<90°),连接BD和CE,此时BD=CE是否依然成立?若成立,写出证明过程;若不成立,说明理由;
(2)【应用】
如图③,当△ADE绕点A逆时针旋转,使得点D落在BC的延长线上,连接CE;
①∠ACE的度数为 度;
②试说明线段BC、CD、CE之间的数量关系;并给出证明
③若AB=AC=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】平面直角坐标系中,A、B两点坐标分别为
、
,以
为边在第二象限内作正方形
.
的长为 ; 点C的坐标为 ;
(2)你能否在x轴上找一点M,使
的周长最小?如果能,请画出M点,并求出M的坐标,并直接写出
周长的最小值;如果不能,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5acab853e90805e9f78fadcc7dcdafca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb51b245cda07bafcde68f346289d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)你能否在x轴上找一点M,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9482a624e40d1a6474d4c1c240e4c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9482a624e40d1a6474d4c1c240e4c9.png)
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解答题-问答题
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【推荐2】如图,在Rt△ABC中,∠ACB=90°,AC=3,BC=4. 点D和点E分别为AC和BC的中点,连接DE. 点P从点A出发,以每秒3个单位长度的速度沿AB方向运动,过点P作PF垂直于AB交折线AC——CB于点F,以PF为一边向PF的右侧作正方形PFGH. 设点P的运动时间为t秒(t>0).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/24/2c2f4ba2-cc79-4650-9d4a-30e68f68b97b.png?resizew=169)
(1)DE的长为 .
(2)当点F在AC边上时,且DE=3PF,求t的值.
(3)当点E落在正方形PFGH内部时,求出t的取值范围.
(4)当线段DE将正方形PFGH的PF边分成两部分之比为
时,直接写出t的值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/24/2c2f4ba2-cc79-4650-9d4a-30e68f68b97b.png?resizew=169)
(1)DE的长为 .
(2)当点F在AC边上时,且DE=3PF,求t的值.
(3)当点E落在正方形PFGH内部时,求出t的取值范围.
(4)当线段DE将正方形PFGH的PF边分成两部分之比为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
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