如图,在
的正方形网格中,
的顶点均在格点上,请按下列要求作图.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/ad67b7f1-c078-42b7-9193-7dbb8189f95b.png?resizew=435)
(1)如图1,请画出
的外接圆;
(2)如图2,在线段
上找一点
,在线段
上找一点
,连接
,使得
与
之比为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a96e9c2e2a15130d1d56a1d0e16b72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/ad67b7f1-c078-42b7-9193-7dbb8189f95b.png?resizew=435)
(1)如图1,请画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图2,在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.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/fc5881f1ce9b4172ca346032d0fd1e3d.png)
更新时间:2022-09-01 17:18:04
|
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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,某学校(A点)与公路(直线1)的距离为300米,与车站(D点)的距离为500米,现要在公路上建一个小商店(C点),使之与学校A及车站D的距离相等.
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(1)在图中作出点C;
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解答题-证明题
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适中
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【推荐2】如图,等腰
的腰
为
的一条弦,另一腰
与
相交于D,底边
上的高
的延长线交
于F,连接
.
;
(2)连接
交
于G,若
,
,
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的长.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b7b530180bb6994ebaf76e7bde302f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bc235df1d3cf1b65050cd1907590cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffc2817fa590affb5a760a25dc65308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.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
中,点
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的坐标为
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/26/0c342638-86cb-4869-8126-89ee84de906f.png?resizew=214)
(1)在图中作出
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(2)(1)中所作圆的圆心坐标为___________,位于圆上在第一象限内的横纵坐标均为整数的点有___________个;
(3)在
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的横坐标
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64888af7b6b36177113b2a395c45665.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/26/0c342638-86cb-4869-8126-89ee84de906f.png?resizew=214)
(1)在图中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)(1)中所作圆的圆心坐标为___________,位于圆上在第一象限内的横纵坐标均为整数的点有___________个;
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de72fd4a7fe654839a317f527c641514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解答题-作图题
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适中
(0.65)
【推荐2】如图,
的三顶点在同一个圆上,∠ACB
90°点D,E分别为AC,BC的中点.限用无刻度直尺完成以下作图:
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893582436745216/2949609223258112/STEM/78ee2908-a35d-4fb0-a004-a0c21a8b3e69.png?resizew=319)
(1)在图1中作出
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(2)在图2中作出
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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(1)在图1中作出
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(2)在图2中作出
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解答题-问答题
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适中
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【推荐1】等边△ABC边长为6,P为BC边上一点,∠MPN=60°,且PM、PN分别于边AB、AC交于点E、F.
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(1)如图1,当点P为BC的三等分点,且PE⊥AB时,判断△EPF的形状;
(2)如图2,若点P在BC边上运动,且保持PE⊥AB,设BP=x,四边形AEPF面积的y,求y与x的函数关系式,并写出自变量x的取值范围;
(3)如图3,若点P在BC边上运动,且∠MPN绕点P旋转,当CF=AE=2时,求PE的长.
![](https://img.xkw.com/dksih/QBM/2011/5/16/1573211912912896/1573212044017664/STEM/2e7a1a728122475dbac794527958fe29.png)
(1)如图1,当点P为BC的三等分点,且PE⊥AB时,判断△EPF的形状;
(2)如图2,若点P在BC边上运动,且保持PE⊥AB,设BP=x,四边形AEPF面积的y,求y与x的函数关系式,并写出自变量x的取值范围;
(3)如图3,若点P在BC边上运动,且∠MPN绕点P旋转,当CF=AE=2时,求PE的长.
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解答题-作图题
|
适中
(0.65)
解题方法
【推荐2】问题探究
(1)如图1,
和
均为等腰直角三角形,
,点B,D,E在同一直线上,连接
.
①请探究
与
之间的位置关系;
②若
,则线段
的长为_________.
拓展延伸
(2)如图2,
和
均为直角三角形,
,
,
,
,
.将
绕点C在平面内顺时针旋转,设旋转角
为
,作直线
,连接
.当点B,D,E在同一直线上时,画出图形,并求线段
的长.
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a77aa6c27acfffcc601d9ca7e6d4c7.png)
①请探究
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8d4476b89bfdf868064ac49e18c726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/14/5c8d34ee-f5ea-4b69-b15a-fe8607551585.png?resizew=300)
拓展延伸
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a7e3a943e5bf040d783c12d67e6a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32513c66bca1e2d1706d50a6615df1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18120a244d3a1f9c1688bf53eb2ad775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348fb71fbc47fd87e9ce011652ef4186.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0acc93490a6a784eb62201d93dd93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b97a81538ab92a18236b676ee94d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次