如图,已知线段
,请用尺规作图法,求作等腰直角
,使其斜边等于线段
.(保留作图痕迹,不写作法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/5b89dfd9-7653-4c38-921c-6e44dcad6c78.png?resizew=170)
更新时间:2023-04-28 12:57:13
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相似题推荐
解答题-作图题
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适中
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名校
【推荐1】 如图,
是直线
外一点,分别按下列要求作图.(要求:用直尺和圆规作图,保留作图痕迹,写出必要的文字说明)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/0e2ee5a3-01f5-468b-ba9d-566ecb3a0947.png?resizew=277)
(1)在图①中作正方形
,使得点
在
上;
(2)在图②中作菱形
,使得点
在
上,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/21/0e2ee5a3-01f5-468b-ba9d-566ecb3a0947.png?resizew=277)
(1)在图①中作正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757942f619e1f8d5296438829fb11b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)在图②中作菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757942f619e1f8d5296438829fb11b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
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解答题-作图题
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适中
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【推荐2】如图,平行线
是一条灌溉渠道的两岸,
是位于渠道两旁的两个村庄,今要在渠上架一座与岸垂直的桥梁,且使得两个村庄到桥头的距离相等,那么此桥应该架在何处?请你用直尺和圆规作出桥的位置.(保留作图痕迹,写出必要的文字说明)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/ed6dd41b-3b5b-4b80-99a8-7efcb6f179e8.png?resizew=166)
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,在四边形
中,
为
的中点,
于点
,
,
,
,求
的度数.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64c92b5f6a7029b4926df15a137c8f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af260e0d98c95d1e092dc4c6d348e3ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9f07a876244afec67a0eca4d45c2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://img.xkw.com/dksih/QBM/2019/10/18/2314442430152704/2314847262662656/STEM/fdfb1ebad0a14dcdbe5e8316ceebe0e0.png?resizew=104)
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解答题-证明题
|
适中
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【推荐2】如图,在
中,
,
,
垂直平分
,垂足为E,交
于点D,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/96e6181a-017d-43cf-8178-d874680454c5.png?resizew=201)
(1)求证:
;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/96e6181a-017d-43cf-8178-d874680454c5.png?resizew=201)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f685735607fb3ddd0297c4e56dcc5985.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解答题-作图题
|
适中
(0.65)
【推荐1】下面是小文设计的“过圆外一点作圆的切线”的作图过程.
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986921767010304/2988849021689856/STEM/9c4713f84d064aee8c1ee1e77cd54f22.png?resizew=195)
已知:
和圆外一点P.
求作:过点P的
的切线.
作法:①连接
;作
的垂直平分线与
交于点M;②以
半径作
,交
于点A,B;③作直线
;
所以直线
为
的切线.
请利用尺规作图补全小文的作图过程,并完成下面的证明.
证明:连接
.
∵
为
的直径,
∴
__________=__________
(__________)(填推理的依据).
∴![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f134b41f939a07722cb4278a958267e7.png)
∵
为
半径,
∴直线
为
的切线.(__________)(填推理的依据).
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986921767010304/2988849021689856/STEM/9c4713f84d064aee8c1ee1e77cd54f22.png?resizew=195)
已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
求作:过点P的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
作法:①连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
所以直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
请利用尺规作图补全小文的作图过程,并完成下面的证明.
证明:连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c4c311b6eb24fa85b994aab2cff003e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f134b41f939a07722cb4278a958267e7.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
∴直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,已知:线段a,直线l及l外一点A.
求作:等腰三角形ABC,使底边BC在l上,且BC=a.
求作:等腰三角形ABC,使底边BC在l上,且BC=a.
![](https://img.xkw.com/dksih/QBM/2019/1/27/2127975543988224/2131477764079616/STEM/30ef7c08f85f414bb17f7578707bdec6.png?resizew=297)
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解答题-作图题
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适中
(0.65)
名校
【推荐1】作图
如图是规格为8×8的正方形网格,请在所给网格中按下列要求操作:
(1)在网格中建立平面直角坐标系,使A点坐标为(﹣2,4),B点坐标为(﹣4,2);
(2)在第二象限内的格点上画一点C,使点C与线段AB组成一个以AB为底的等腰三角形,且腰长是无理数;
(3)△ABC的周长= (结果保留根号);
(4)画出△ABC关于y轴对称的△A′B′C′.
如图是规格为8×8的正方形网格,请在所给网格中按下列要求操作:
(1)在网格中建立平面直角坐标系,使A点坐标为(﹣2,4),B点坐标为(﹣4,2);
(2)在第二象限内的格点上画一点C,使点C与线段AB组成一个以AB为底的等腰三角形,且腰长是无理数;
(3)△ABC的周长= (结果保留根号);
(4)画出△ABC关于y轴对称的△A′B′C′.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/a6e6dbd8-fe8b-48ab-b3a9-30ab23408a2a.png?resizew=173)
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解答题-作图题
|
适中
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【推荐2】(1)请在图中画出三个以AB为腰的等腰△ABC.
![](https://img.xkw.com/dksih/QBM/2018/12/14/2096702083899392/2097560940027904/STEM/9ddaaab51e6245249047eea1df662ce9.png?resizew=340)
(要求:1.锐角三角形,直角三角形,钝角三角形各画一个;2.点C在格点上.)
(2)如图,AC⊥BC,BD⊥AD,垂足分别为C,D,AC=
BD.求证BC=AD.
![](https://img.xkw.com/dksih/QBM/2018/12/14/2096702083899392/2097560940027904/STEM/9ddaaab51e6245249047eea1df662ce9.png?resizew=340)
(要求:1.锐角三角形,直角三角形,钝角三角形各画一个;2.点C在格点上.)
(2)如图,AC⊥BC,BD⊥AD,垂足分别为C,D,AC=
![](https://img.xkw.com/dksih/QBM/2018/12/14/2096702083899392/2097560940027904/STEM/ac95a8969e4447318e8145e9c7474fd3.png?resizew=5)
![](https://img.xkw.com/dksih/QBM/2018/12/14/2096702083899392/2097560940027904/STEM/357262dc53c74c56ab62b9add178d57f.png?resizew=157)
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