如图,将一副三角板在平行四边形
中作如下摆放,那么
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/dd984f55-a2fa-4ee9-8b42-bd18bfbba650.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cab0ab837361cbc3cad906e087ecbd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/dd984f55-a2fa-4ee9-8b42-bd18bfbba650.png?resizew=160)
A.80° | B.75° | C.70° | D.60° |
更新时间:2023-12-08 14:52:25
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【推荐2】一副三角板拼成如图所示的图案,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/e849accf-2ef9-4d5c-b67b-a51022d8d98f.png?resizew=106)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,在
中,弦
,
与
相交于点
,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2023/2/14/3174618464362496/3178926318059520/STEM/2a7d44b726a0470a93ff40149b15f06d.png?resizew=163)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b0f2c0352a94898281927fa8cb7a26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b30efc4b397d8cab19a35e90abdafd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://img.xkw.com/dksih/QBM/2023/2/14/3174618464362496/3178926318059520/STEM/2a7d44b726a0470a93ff40149b15f06d.png?resizew=163)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,AB∥CD,AF交CD于点O,且OF平分∠EOD,如果∠A=34°,那么∠EOD的度数是( )
![](https://img.xkw.com/dksih/QBM/2014/7/1/1573736445419520/1573736450580480/STEM/c28566a113fa437c843168b6478739f1.png)
![](https://img.xkw.com/dksih/QBM/2014/7/1/1573736445419520/1573736450580480/STEM/c28566a113fa437c843168b6478739f1.png)
A.34° | B.68° | C.102° | D.146° |
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【推荐1】如图,在△ABC中,∠A=30°,AB=AC,点D在AC边上,以CB,CD为边作▱BCDE,则∠E的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/10/5b5c9cf5-efd6-47b9-aae6-646c0c096f33.png?resizew=212)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/10/5b5c9cf5-efd6-47b9-aae6-646c0c096f33.png?resizew=212)
A.80° | B.75° | C.70° | D.65° |
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【推荐2】下列命题中,假命题是( )
A.两条对角线互相平分的四边形是平行四边形 |
B.两条对角线互相垂直的平行四边形是菱形 |
C.两条对角线相等的平行四边形是矩形 |
D.两条对角线互相垂直且相等的四边形是正方形 |
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