按以下步骤进行尺规作图:(1)以点
为圆心,任意长为半径作弧,交
的两边
、
于
两点;(2)分别以点
为圆心,大于
的长为半径作弧,两弧交于点
;(3)作射线
,并连接
.给出下列结论:①
垂直平分
;②
;③
;④
;⑤尺规作图的依据是
.其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/e06a6164-dd03-41c9-b0c9-da14a1fa3d92.png?resizew=146)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664cc63a58f1b2e0b94d2cae5c6ba5de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7a3e520a16d4fdd73c4e6a4ce7be0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62e8aadaadebf1454fde21a390ebdea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4506359deff2607a13d5203457c71b19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4506359deff2607a13d5203457c71b19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fb68fe2e0173b029d5d62af1836b001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6967ebd791092c62b4ef97924d91883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb137200ebfc9a97ed795505b563729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6967ebd791092c62b4ef97924d91883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fc6727326e5b62e31db781f2240779.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92442f2d1c1dac43048770ffd88e9a39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/621ba9a13622c259675d22db8615f42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358dc5c5d5b24efba154bc508c00a021.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/e06a6164-dd03-41c9-b0c9-da14a1fa3d92.png?resizew=146)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-01-29 14:02:15
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【推荐1】下列语句:①形状相同的三角形是全等三角形;②任意两边对应相等的两个直角三角形全等;③两个等边三角形一定全等;④有两角一边对应相等的两个三角形全等.其中错误的说法个数有( )
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【推荐2】如图,在四边形ABCD中,AD∥BC,若∠DAB的角平分线AE交CD于E,连接BE,且BE平分∠ABC,则下列结论:①∠AEB=90°;②E为CD的中点;③BC+AD=AB;④
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【推荐1】如图,在△ABC中,∠C=90°,∠B=30°,以A为圆心,任意长为半径画弧分别交AB,AC于点M和N,再分别以M,N为圆心,大于
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【推荐2】如图,在
中,
,以点B为圆心,适当长为半径画弧,分别交
于点M,N,再分别以点M,N为圆心,大于
的长为半径画弧,两弧交于点P,作射线
交
于点D.若
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中,
边上的高为( )
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【推荐1】尺规作图要求:Ⅰ、过直线外一点作这条直线的垂线;Ⅱ、作线段的垂直平分线;Ⅲ、过直线上一点作这条直线的垂线;Ⅳ、作角的平分线.如图是按上述要求排乱顺序的尺规作图,正确的顺序是( )
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【推荐2】如图所示的三个图是三个基本作图的作图痕迹,关于三条弧 ①、 ②、 ③有以下三种说法:
(1)弧 ①是以点O为圆心,任意长为半径所作的弧;
(2)弧 ②是以点A为圆心,任意长为半径所作的弧;
(3)弧 ③是以点O为圆心,大于
的长为半径所作的弧.
其中正确说法的个数为
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/c18cd738-ff53-499f-b7f2-30e74c18e581.png?resizew=423)
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(2)弧 ②是以点A为圆心,任意长为半径所作的弧;
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【推荐1】如图,C为
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