如图是某风车的示意图,其大小相同的四个叶片均匀分布,点M在旋转中心O的正下方.某一时刻,太阳光恰好垂直照射叶片
,叶片影子为线段
,测得
米,
米,此时垂直于地面的标杆
与它的影子
的比为
(其中点M,C,D,F,G在水平地面上),则
的高度为______ 米,叶片
的长为______ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d071d008cdc313f6ed16a602f8a9669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
更新时间:2023-01-18 13:59:22
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【推荐1】某一时刻甲木杆高2米,它的影长是1.5米,小颖身高1.6米,那么此时她的影长为_____ 米.
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【推荐2】如图,小明同学在非洲旅游期间想自己测出金字塔的高度,首先小明在阳光下测量出了长1 m的木杆CD的影子CE长1.5m;其次测出金字塔中心O到影子的顶部A的距离为201m.则金字塔的高度BO为_________ m.
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【推荐1】如图,已知在四边形
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.连接
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米,
米. 为提升公园品质, 现有两个增建方案: 方案一, 在区域内取点
, 修建便捷路线, 使游客从
到达
景点, 若
是以
为顶点的等腰直角三角形, 那么便捷路线长为________ 米;方案二,在区域内取点
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=
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