如图,将三角形ABC沿BC方向平移3cm得到三角形DEF,若三角形ABC的周长为16m,则四边形ABFD的周长为( )
![](https://img.xkw.com/dksih/QBM/2020/7/2/2497162041098240/2497315656654849/STEM/191feea479284463a15d408e5fdc34bd.png?resizew=139)
![](https://img.xkw.com/dksih/QBM/2020/7/2/2497162041098240/2497315656654849/STEM/191feea479284463a15d408e5fdc34bd.png?resizew=139)
A.19cm | B.22cm | C.25cm | D.28cm |
更新时间:2020-07-30 22:31:28
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【推荐1】如图,把
放在平面直角坐标系内,其中
,
,点
、
的坐标分别为
、
,将
沿
轴向右平移,当点
落在直线
上时,线段
扫过的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】平面直角坐标系中,将点A(
,
)沿着x的正方向向右平移(
)个单位后得到B点,则下列结论:①B点的坐标为(
,
);②线段AB的长为3个单位长度;③线段AB所在的直线与x轴平行;④点M(
,
)可能在线段AB上;⑤点N(
,
)一定在线段AB上.其中正确的结论有( )
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