某同学为测量数学楼的高度,先在地面选择一点
,测量出对教学楼
的仰角
,再分别执行如下四种测量方案,则利用测量数据可表示出教学楼高度的方案编号为______ .
方案(1):从点
向教学楼前进
米到达点
,测量出角
;
方案(2):在地面上另选点
,测量出角
,
,
米;
方案(3):在地面上另选点
,测量出角
,
米;
方案(4):从过点
的直线上(不过点
)另选点
、
,测量出
米,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c029e4ab80f8a2080d59ba73841f364f.png)
方案(1):从点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a0046fcba47265013ce66476bd45fb.png)
方案(2):在地面上另选点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5d383c419b53ea5159625f306760b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e360a55b18be925d7bb41694d5d4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e8cfc92fac8debb8bc06293ccc1685.png)
方案(3):在地面上另选点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4465cef54ed3fdd1f195a9e0baab0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e8cfc92fac8debb8bc06293ccc1685.png)
方案(4):从过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffcda9146418b3706a909d5f7949cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a0046fcba47265013ce66476bd45fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ffab1d267a838b8adb34f63316c865.png)
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966248108179456/2970296491712512/STEM/da8b050992614253a001ff8688f76bac.png?resizew=426)
更新时间:2022-05-01 23:46:35
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