1 . 如图,用斜二测画法画出水平放置的
的直观图为
,已知
,
,则
的周长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ee6e1d480ece7117e1f87ebf4bbeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b846040f45308f9e7599cc30b9fafa03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a3ea810b5bc59148de8f21a09ab105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/18/53e7f712-7327-4934-9371-07927c0c522f.png?resizew=138)
您最近一年使用:0次
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2 . 若△OAB的斜二测直观图为如图所示的
,则原△OAB的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d02d76af11a2b8bfb7d6e1b3c171f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/ec5cf0ad-c731-4528-bfd1-6bd0fd4f9f48.png?resizew=147)
您最近一年使用:0次
2023-01-30更新
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269次组卷
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2卷引用:福建省厦门第二中学2022-2023学年高一下学期4月阶段性考试数学试题