如图,小明利用标杆
测量建筑物
的高度,已知标杆
的长为
米,测得
米,
米. 则楼高
是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/11/c4d95ad9-0d62-4346-bca7-6531a2bd6ce1.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd7c304b64435d1697c1ea29efe08fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f309ce5108d198ad8386ab2498141e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb06621d994fee8f460d1d3f8f02d94a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/11/c4d95ad9-0d62-4346-bca7-6531a2bd6ce1.png?resizew=137)
A. ![]() | B. ![]() | C.8米 | D. ![]() |
更新时间:2023-05-04 10:14:21
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【推荐1】我国古代数学著作《九章算术》中记载了一个问题:“今有邑方不知大小,各开中门,出北门三十步有木,出西门七百五十步见木,问:邑方几何?”其大意是:如图,一座正方形城池,A为北门中点从点A往正北方向走30步到B处有一树木,C为西门中点,从点C往正西方向走750步到D处正好看到B处的树木,则正方形城池的边长为( )步.
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【推荐2】如图,小明从路灯下A处,向前走了5米到达D处,在D处发现自己在地面上的影子长
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