已知一个水平放置的平面图的斜二测直观图是一个平行四边形
(如图示),其底角为
,
,
,则平面图形的实际面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/6e855a30-c7d6-42f5-8dab-dfa41bd93d85.png?resizew=181)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae2fd0bb6dcb90ee752e7bcabd22b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a19f5aaf41fa7794917efe6f661e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98bf4e68ef83372166904bc195a3ee57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6969b58bc213039b647791dc645a177a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/18/6e855a30-c7d6-42f5-8dab-dfa41bd93d85.png?resizew=181)
A.4 | B.![]() | C.8 | D.16 |
21-22高一·全国·假期作业 查看更多[2]
(已下线)第08练 基本立体图形与直观图-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)(已下线)第06练 基本立体图形及其表面积与体积-2022年【暑假分层作业】高一数学(苏教版2019必修第二册)
更新时间:2022-06-18 08:52:51
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【推荐1】如图所示,在等腰直角三角形
中,
,它是一个水平放置的平面图形的直观图,则原图形的面积为( )
![](https://img.xkw.com/dksih/QBM/2022/4/30/2969419016282112/2972330732462080/STEM/2643ec04ec004fa09d6484803df2eb24.png?resizew=222)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a633df6d1b15deeab2acd9040c7177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ff12049bb9ee867712067c6367099f.png)
![](https://img.xkw.com/dksih/QBM/2022/4/30/2969419016282112/2972330732462080/STEM/2643ec04ec004fa09d6484803df2eb24.png?resizew=222)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图所示,矩形
是水平放置一个平面图形的直观图,其
,
,则原图形是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/13b48274-aa9e-4e23-9db2-b8cb35802243.png?resizew=216)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352529b508315e10a9a078898c2ae8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60bd5213521fe21f8678e9f55814c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c302aa8b3761b1430c1f1b673e1d1d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/13b48274-aa9e-4e23-9db2-b8cb35802243.png?resizew=216)
A.正方形 |
B.矩形 |
C.菱形 |
D.梯形 |
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【推荐1】若用斜二测画法画出某△ABC水平放置的直观图,得到边长为2的等边三角形,则原
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() | C.4 | D.![]() |
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【推荐2】将水平放置的
用斜二测画法得到的直观图
如图所示,已知
,
,则边
的实际长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8aa600284cfc76eda21db390cce918.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b846040f45308f9e7599cc30b9fafa03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5739b04c9d9c3f43d1a951825fd3eba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.5 | B.6 | C.![]() | D.![]() |
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