如图,正方形
的边长为
,它是水平放置的一个平面图形的直观图,则原图形的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2021-08-16 00:24:31
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【推荐1】已知水平放置的△ABC是按“斜二测画法”得到如图所示的直观图,其中B′O′=C′O′=1,A′O′=
,那么原△ABC的面积是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/8bbe8740-441a-4d7c-9fbd-d30fe8feb326.png?resizew=143)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7881094ce2f907c3aaf664318ecd3e2d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/8bbe8740-441a-4d7c-9fbd-d30fe8feb326.png?resizew=143)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】如图所示为一个水平放置的平面图形的直观图,它是底角为
,腰和上底长均为
的等腰梯形,则原平面图形为 ( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/27/32e4bee3-aa2e-4110-945f-48879d9785b0.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/27/32e4bee3-aa2e-4110-945f-48879d9785b0.png?resizew=144)
A.下底长为![]() |
B.下底长为![]() |
C.下底长为![]() |
D.下底长为![]() |
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【推荐1】一个水平放置的三角形ABC的直观图是边长为2的等边三角形
,则
的面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1264a2e3609e1c274acb89b5ea5019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】已知
是直角梯形,
,
,且
,
,
.按照斜二测画法作出它的直观图
,则直观图
的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d609847e2ff3d64e5a514582c3ead0e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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