1 . 如图,从平面
外一点
,引射线
、
、
,在它们上面分别取点
、
、
,使得
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/84add72e-36fd-44dd-9ea4-470ff8224181.png?resizew=147)
(1)画出平面
并判断两个平面的位置关系;
(2)若点
到平面
的距离为2,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c42149443e5eadab07087780ec7bec.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/16/84add72e-36fd-44dd-9ea4-470ff8224181.png?resizew=147)
(1)画出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b16cff607cdc2d69afc70dc778acbb.png)
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2 . 某公司出产了一款美观实用的筷子笼,如图,是由与圆柱底面成一定角度的截面截圆柱所得.如果从截面的最底端到最高端部分还原圆柱,如下图所示,AB,
分别为圆柱
底面直径,
,
为圆柱的母线,
,过
的平面
截圆柱且与底面所在平面交于直线
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/e8c50ced-4ea3-475f-92fa-a78be6572be7.png?resizew=511)
(1)证明:
;
(2)若底面有一动点M从A点出发在圆O上运动,过动点M的母线与截面
交于点N,设
,
,其中
.
①求
与
的函数关系;
②将圆柱
侧面沿母线
剪开并展平,请在所给的展开图中画出平面
截圆柱侧面的截痕,并建立适当的平面直角坐标系直接 写出其解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655cc150ddc9deba2254780984d0024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3671adea94a33848afff9b2edb6a902e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943712a5e96b16cc15d775cc4687237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae781496bb5bc79b67abced9aa3cd0c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/e8c50ced-4ea3-475f-92fa-a78be6572be7.png?resizew=511)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa812513cb17ffa7901d1f5e3fb25c5.png)
(2)若底面有一动点M从A点出发在圆O上运动,过动点M的母线与截面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d685845e1baa7e66d2502eebfcbb22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4914d142641c85ea5454b1eb05ac4204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d7581e52d1fa9eb225928fabd57fe9.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②将圆柱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270ddac9587bf1ea553914cb69595ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6024fd4532f5f981deac4582c799a6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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