如图,是一张平行四边形纸片ABCD,要求利用所学知识将它变成一个菱形,甲、乙两位同学的作法分别如下:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/b945d417-83e5-4098-9a22-c072e2828cad.png?resizew=764)
对于甲、乙两人的作法,可判断( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/b945d417-83e5-4098-9a22-c072e2828cad.png?resizew=764)
对于甲、乙两人的作法,可判断( )
A.甲正确,乙错误 | B.甲错误,乙正确 |
C.甲、乙均正确 | D.甲、乙均错误 |
更新时间:2021-08-19 12:09:01
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【推荐1】如图,在平行四边形
中,边
在
轴上,点
,点
,按以下步骤作图:分别以点
,
为圆心,大于
的长为半径作弧,两弧相交于
,
两点;作直线
,交
于点
;连接
,则
的长为( )
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【推荐2】如图,在平行四边形
中,
,
的平分线交
点
,交
的延长线于点
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,
,则线段
的长为( ).
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【推荐1】如图顺次连接等腰梯形四边中点得到一个四边形,再顺次连接所得四边形四边的中点得到的图形是( )
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【推荐2】如图,在
中,
,
于点D,
平分
,交
于点G,交
于点E,
于点F,
交
于点Q.下列结论:①
;②
;③
;④
为等边三角形.其中所有正确结论的序号是( )
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