名校
1 . 某中学开展综合与实践活动,小宇所在的小组负责测量该校附近的山坡的护坡石坝坝顶
与坝脚
之间的距离
,如图,他们的测量方法如下:小宇将一根长5米的竹竿
斜靠在石坝旁,量出竿长1米处
米)距离地面的高度
米,小组其他同学测得石坝与地面的倾斜角
.请你根据以上信息,求出石坝坝顶
与坝脚
之间的距离
.(结果保留一位小数;参考数据:
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e326914cd1679e3d646f3e293e2b6829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d675d86d42715909fba36b20282381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a43445d521cbe5b9bb9a484e333527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3acffaadb48f8314c352ae72d458612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e7955ee82ee143a9b2ca1fb2c0e982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d675d86d42715909fba36b20282381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d69b57ac28710f1d8c476d6397bf2ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81c72acfa57b049df39e815e424a2763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e326914cd1679e3d646f3e293e2b6829.png)
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2 . 如图,一辆小车沿着坡度为
的斜坡向上行驶了
,则该小车上升的高度为________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db20862b954cd1886f4765657a46d91c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c072751427c7aa5fa52c94e5da768478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5022abc6afd4deff13845419fa38312e.png)
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3 . 如图,已知传送带
与地面
所成斜面坡度为
,如果它把物体送到离地面3米高的地方,那么物体在传送带上所经过的路程为__________ 米(结果保留根号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09824eebae0979a2b6b1fcc4d04bdee.png)
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4 . 如图,已知斜坡
长为
,坡角(即
)为
,
,现计划在斜坡中点
处挖去部分坡体(用阴影表示)修建一个平行于水平线
的平台
和一条新的斜坡
.若修建的斜坡
的坡角为
,则平台
的长为__________
.(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16031d843863bfef706632beaf7ad77d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d900531973c546625694146fa1509ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47bb3f35e3db7c1f3a3dd3eb20151b5f.png)
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5 . 如图,这是某地铁站扶梯的示意图,扶梯
的坡度
,小宇乘扶梯从扶梯底端A以0.6米/秒的速度,用时50秒到达扶梯顶端B,则小宇上升的垂直高度
为______ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df98c7b41e565f2f1f0b36fb98cfe3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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6 . 如图,已知正方形的边长为6,
,将正方形
绕着点C顺时针旋转,使点D落在坡度为
的坡面
上,则在旋转过程中,点A的路径长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cfa5651c2e3ddc9a59ef514714039c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e34b79c53d8ef007f19be2dda8ee641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
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7 . 如图,在距某居民楼
楼底B点左侧水平距离
的C点处有一个山坡,山坡
的坡度(或坡比)
,山坡坡底C点到坡顶D点的距离
,在坡顶D点处测得居民楼楼顶A点的仰角为
,居民楼
与山坡
的剖面在同一平面内,则居民楼
的高度约为____________ .(精确到1米)(参考数据:
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17df203094c1182d5aec5519e20d2d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7307a8c0951c7de5b675ce4a61166bb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d5fb7f3d8d7086b99968bcb42c5786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc26cc7a314e20192020c2a1d52ae3ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ed69f1776cf29883f6bdfeb0cafd9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f1ef386b284eb2f3d3d5a9775612d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03293ed1366537ee27631e921b63e7e9.png)
您最近一年使用:0次
2024-06-05更新
|
115次组卷
|
3卷引用: 2024年山东省滨州市无棣县中考二模数学试题
8 . 某地为拓宽河道和提高拦水坝,进行了现有拦水坝改造.如图所示,改造前的斜坡
米,坡度为
:
;将斜坡
的高度
提高
米
即
米
后,斜坡
改造成斜坡
,其坡度为
.则改造后斜坡
的长为 ___________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6343e16cb02114ad4f9a2199d6f7512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f179a5e46197a7f5f5646fefd47c1989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3c84ea83f5595d23dfa367e016485e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/035092586e0d8e8b91a65ac8a8f98f24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
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9 . 一斜坡的坡角为
,坡长比坡高多100米,那么斜坡的高为________ (用
的锐角三角比表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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10 . 如图,与斜坡
垂直的太阳光线照射立柱
(与水平地面
垂直)形成的影子,一部分落在地面上,另一部分落在斜坡上.若
米,
米,斜坡的坡角
,则立柱
的高为________ 米(结果精确到0.1米).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed742f591e7c54cbab4b2adb36abfbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497d2ff45ff267f597d80dfbeeda82aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
科学计算器按键顺序 | 计算结果(已取近似值) |
0.530 | |
0.848 | |
0.625 |
您最近一年使用:0次