如图是根据四边形的不稳定性制作的边长为15 cm的可活动菱形衣架.若墙上钉子间的距离AB=BC=15 cm,则∠1=_______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/a867f9e9-c5f4-4374-8062-74ccfa4f5a4f.png?resizew=164)
更新时间:2016-12-06 12:06:08
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【知识点】 利用菱形的性质求角度解读
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【推荐1】如图,在菱形
中,
,分别以
,
为圆心,以大于
长为半径,作弧交于两点,过此两点的直线交
边于点
,连接
,
,则
的度数为__________ .
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【推荐2】如图,在菱形ABCD中,∠BAC=30°,则∠B=____ 度.
![](https://img.xkw.com/dksih/QBM/2017/10/16/1796660611940352/1796672084516864/STEM/d4b1ae85-65ee-4900-b0fd-4d8f239c6e03.png)
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