题型:填空题
难度:0.85
引用次数:362
题号:12783686
如图,在
中,
,
是高,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2700951566942208/2701217324081152/STEM/cdc8cebe35294c43b029dd0d30f024a0.png?resizew=140)
更新时间:2021-04-16 19:43:37
|
【知识点】 含30度角的直角三角形解读
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【推荐2】将一副三角尺按如图所示的方式叠放在一起,若
,则阴影部分的面积是________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdaed9d0af5e2ba13c68153b3ed91727.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b29740de45f5d1c38d6fae09c3ff11.png)
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