将一副直角三角尺放在长方形纸片上,按如图所示方式摆放,若∠1=30°,则∠2的度数是( )
A.60° | B.65° | C.75° | D.80° |
更新时间:2022-08-10 10:03:23
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【推荐1】一副三角板如图所示摆放,则
与
的数量关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15417741fba20d681ab4414b07339099.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,将直尺与含
角的三角尺叠放在一起,
角的顶点落在直尺的一边上,其两边与直尺相交,若
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d51771ae1db45bb64d63f2e3fdd3bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】将一直尺和一块含
角的三角尺按如图放置,若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d493d672f9d54790afd1bffd352ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f832c7fb2ef808457e2543466cbc1f5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图所示,
,垂足为E,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/4a2b8991-8b40-477d-86ab-718992cba842.png?resizew=199)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7916582dea2efe79762d6497093237bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d660c35fc327081bdd306aad0b35317f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/19/4a2b8991-8b40-477d-86ab-718992cba842.png?resizew=199)
A.![]() | B.![]() | C.![]() | D.![]() |
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