下图是小冉同学的作业,已知这个作图的顺序是排乱的,则正确的作图顺序为( )
已知∶
.
求作∶
,使
.
作法:①以
为圆心,
长为半径画弧,与已画的弧相交于点
;
②画一条射线
,以
为圆心,OC长为半径画弧,交
于点
;
③以O为圆心,任意长为半径画弧,分别交
,
于点C,D;
④过点
面射线
,则
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/32e6fd3d-ea46-4640-9420-65f1516e1c9d.png?resizew=342)
已知∶
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
求作∶
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e3d51307daa0cfab77eec9311d91bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27949b9eac364001ddbd7ec0ef2e0142.png)
作法:①以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
②画一条射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48e33eaa40d01f976230d4b73ae91dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48e33eaa40d01f976230d4b73ae91dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
③以O为圆心,任意长为半径画弧,分别交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208f155347298c2ad3949346c85aa504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
④过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b9682294e6adcaf966e3bddbdf2e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637859805b7b01f7a9a64771563406e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27949b9eac364001ddbd7ec0ef2e0142.png)
A.③②①④ | B.③①②④ | C.②①③④ | D.②③①④ |
更新时间:2024-01-02 10:30:32
|
【知识点】 尺规作一个角等于已知角解读
相似题推荐
单选题
|
较易
(0.85)
【推荐1】如图,已知
,以点
为圆心,以任意长为半径画弧①,分别交
于点
,再以点
为圆心,以
长为半径画弧,交弧①于点
,画射线
.若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a373959bb9026f8a09845c0b828bf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b0c051694d7af4c2379a7bfebcd8b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】如图,通过尺规作图,得到
,再利用全等三角形的性质,得到了
,那么,根据尺规作图得到
的理由是( )
![](https://img.xkw.com/dksih/QBM/2021/6/29/2753307128102912/2757822844600320/STEM/1408e237-ef09-497e-ade2-d62d99d46981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49affee4a4fa4b8132fc9b50ae656f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27949b9eac364001ddbd7ec0ef2e0142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49affee4a4fa4b8132fc9b50ae656f03.png)
![](https://img.xkw.com/dksih/QBM/2021/6/29/2753307128102912/2757822844600320/STEM/1408e237-ef09-497e-ade2-d62d99d46981.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次