已知,如图1,A在x轴负半轴上,B(0,
),点E(
,4)在射线BA上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/0668f357-5a23-42a5-94cf-145c49484cde.png?resizew=420)
(1)求证:点A为BE的中点;
(2)在y轴正半轴上有一点F,使∠FEA=45°,求点F的坐标;
(3)如图2,点M、N分别在x轴正半轴、y轴正半轴上,MN=NB=MA,点I为△MON的内角平分线的交点,AI、BI分别交y轴正半轴、x轴正半轴于P、Q两点,IH⊥ON于H,记△POQ的周长为
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01317332a203c898536b1d0459f51d23.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/11/0668f357-5a23-42a5-94cf-145c49484cde.png?resizew=420)
(1)求证:点A为BE的中点;
(2)在y轴正半轴上有一点F,使∠FEA=45°,求点F的坐标;
(3)如图2,点M、N分别在x轴正半轴、y轴正半轴上,MN=NB=MA,点I为△MON的内角平分线的交点,AI、BI分别交y轴正半轴、x轴正半轴于P、Q两点,IH⊥ON于H,记△POQ的周长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dffb84b8e70a886e3af5f4dc37d7d4a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73f76ee42e20593cb820130c16c569f.png)
更新时间:2022-10-09 14:40:26
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相似题推荐
解答题-问答题
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【推荐1】如图1,在平面直角坐标系中,A(a,0),C(b,2),且满足
,过点C作CB⊥x轴于点B.
(1)求A、C两点坐标;
(2)若过点B作BD∥AC交y轴于点D,且AE、DE分别平分∠CAB、∠ODB,如图2,求∠AED的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbde109b0d981c45e56a2db78dffa6e9.png)
(1)求A、C两点坐标;
(2)若过点B作BD∥AC交y轴于点D,且AE、DE分别平分∠CAB、∠ODB,如图2,求∠AED的度数.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/09cad4d9-528c-4e06-9224-e5687f7a3128.png?resizew=375)
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【推荐2】平面直角坐标系中,矩形AOBC的顶点C的坐标为(m,n),m、n满足m﹣8
.
(2)如图1,连接AB、OC交于点D,过点D作DM⊥DB交x轴于点M,求点M的坐标;
(3)如图2,E、F分别为OB、BC上的动点,以AE、EF为边作矩形AEFQ,连接EQ、CQ,当EQ=2CQ时,求点Q的纵坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403523b094fdd69850ab7fe832a6c3ad.png)
(2)如图1,连接AB、OC交于点D,过点D作DM⊥DB交x轴于点M,求点M的坐标;
(3)如图2,E、F分别为OB、BC上的动点,以AE、EF为边作矩形AEFQ,连接EQ、CQ,当EQ=2CQ时,求点Q的纵坐标.
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【推荐1】如图,四边形
中,
,
,
,
,
.点
从点
出发沿折线
向点
运动,连接
,将
绕点
顺时针旋转得到
,旋转角等于
,作
于点
,设点
运动的路程为
.
______°.
(2)若点
在
上(
除外).
①求证:
;
②当点
落在
上时,求
的值.
(3)作
的中线
,若
与线段
有交点,直接写出 x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5156c0f70ad1f6afbdd39360a595755b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7d2a2da5144f0bf6ce091c56b3d5a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b466f14067ec8653e2cbbb2684245b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.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/778cdfe7346279f9695a745fb780e806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868ff1350bd72625328c85c3097cd85e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2350fe8426a29f5dc63c7fdda29b2ea.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa8a9b14da8a472a8855449f1160b84.png)
②当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a9ec45721f7b4d1c99917ac0d970f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
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解答题-作图题
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【推荐2】综合与实践
下面是某数学兴趣小组探究问题的片段,请仔细阅读,并完成任务.
题目背景:在
中,
,
,点
在
上.
(1)【作图探讨】如图1,以
为圆心,
为半径画弧,
为圆心,
为半径画弧;两弧交于点
,连接
,
;则
.
选择填空:得出
的依据是______(填序号).
①
②
③
④![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9beb8b968744573e593ac28451c69729.png)
(2)【测量发现】如图2,在(1)中
的条件下,连接
.兴趣小组用几何画板测量发现
和
的面积相等.为了证明结论,尝试延长线段
至点
,使
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,从而得以证明.请完成证明过程.
(3)【迁移应用】如图3,
,
,点
在
上,
,
,在射线
上是否存在点
,使得
?若存在,请直接写出
的长;若不存在,请说明理由.
下面是某数学兴趣小组探究问题的片段,请仔细阅读,并完成任务.
题目背景:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/49575a78-9fd2-4478-854c-3ffadb15e340.png?resizew=560)
(1)【作图探讨】如图1,以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b44c187007fd335f9c2ae30617640f7.png)
选择填空:得出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b44c187007fd335f9c2ae30617640f7.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6720e36b02193db161c61d4017673760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a290f047f50481318d040c604d72f7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9beb8b968744573e593ac28451c69729.png)
(2)【测量发现】如图2,在(1)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b44c187007fd335f9c2ae30617640f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(3)【迁移应用】如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3841d85fedea835c404d5ce7e843d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea0df817e3e2cd95b9cd8f73386834c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202262caed6869a80feee0cb861a210b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ea7b19ee92cbf13350a1ee9476cc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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解答题-问答题
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【推荐1】已知:在△ABC中,BA=BC,点D在BC边上,△ADE中,DA=DE,∠ADE=∠B.
(1)如图1,当∠B=60°时,请直接写出线段BD,CE的数量关系;
(2)如图2,当∠B=90°时,(1)中的结论是否成立;如果成立,请说明理由,如果不成立,请写出它们的数量关系,并说明理由;
(3)如图3,当∠B=α(0°<α<180°)时,请直接写出线段BD,CE的数量关系.
(1)如图1,当∠B=60°时,请直接写出线段BD,CE的数量关系;
(2)如图2,当∠B=90°时,(1)中的结论是否成立;如果成立,请说明理由,如果不成立,请写出它们的数量关系,并说明理由;
(3)如图3,当∠B=α(0°<α<180°)时,请直接写出线段BD,CE的数量关系.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/27/a81d7421-b27f-46db-b1df-afc4b1621921.png?resizew=535)
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【推荐2】如图,在平面直角坐标系中,O为坐标原点,⊙C的圆心坐标为(﹣2,﹣2),半径为
.函数y=﹣x+2图象与x轴交于点A,与y轴交于点B,点P为线段AB上一动点(包括端点).
![](https://img.xkw.com/dksih/QBM/2021/12/17/2874531254059008/2942364836896768/STEM/4c79a54ac4934178ad373b0626f8cfcc.png?resizew=209)
(1)连接CO,求证:CO⊥AB;
(2)当直线PO与⊙C相切时,求∠POA的度数;
(3)当直线PO与⊙C相交时,设交点为E、F,点M为线段EF的中点,令PO=t,MO=s,求s与t之间的函数关系,并写出t的取值范围;
(4)请在(3)的条件下,直接写出点M运动路径的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://img.xkw.com/dksih/QBM/2021/12/17/2874531254059008/2942364836896768/STEM/4c79a54ac4934178ad373b0626f8cfcc.png?resizew=209)
(1)连接CO,求证:CO⊥AB;
(2)当直线PO与⊙C相切时,求∠POA的度数;
(3)当直线PO与⊙C相交时,设交点为E、F,点M为线段EF的中点,令PO=t,MO=s,求s与t之间的函数关系,并写出t的取值范围;
(4)请在(3)的条件下,直接写出点M运动路径的长度.
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