1 . 在直四棱柱
中,底面
是边长为2的正方形,侧棱
,
是
的中点,
是棱
上的点,且
,过
作平面
,使得平面
平面
,则平面
截直四棱柱
,所得截面图形的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a4697e08455012e1df351e6f38009c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414844edd458857bdfc80bffa61cbf9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
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解题方法
2 . 如图,在正方体
中,
分别为
和
的中点,则下列说法正确的序号有______ .
,
,
,
四点共面;②
平面
;③
与
所成角为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9369aed2d8309af46ac3eaffb9cce537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/508b651e7ee34d9b3ea270996d794ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc3f049152c43dd29b12d0a60aa79f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8263493a370d77a1e6e19f331c970955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
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解题方法
3 . 如图,正方体
的棱长为1,点
是线段
的中点,点
是正方形
所在平面内一动点,若
平面
,则
点轨迹在正方形
内的长度为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183d4a4db2be531d09a180b36515ff75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923189afc198d153c79059a827f63c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
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11-12高一·全国·课后作业
名校
4 . 已知平面α∥平面β,P是α、β外一点,过P点的两条直线PAC、PBD分别交α于A、B,交β于C、D,且PA=6,AC=9,AB=8,则CD的长为___________.
您最近一年使用:0次
2016-12-02更新
|
628次组卷
|
5卷引用:黑龙江省大庆市实验中学2023-2024学年高一下学期6月份阶段性质量检测数学试卷
2011高一上·海南·学业考试
名校
5 . 已知
是三条不重合直线,
是三个不重合平面,下列说法:
①
,
; ②
,
;
③
,
;④
,
;
⑤
,
;⑥
,
.
其中正确的说法序号是_________ (注:把你认为正确的说法的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f682870aa63eea67a9f3133b3dabac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66757584d80b3e3f71ea5613861363ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766937c3131023741dbbb6c39c3021b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d73ad9021fc4df50106faf32845d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ddaf435dcdf81b14ed2546981c2527.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daac3b69009a27d28fa04fd88c9bb102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32511975de35a1aac4036e0e2ecd15b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cdac0642e43d34844805d50691ee9be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b77ab92f78d9153c7bc74e1cda086341.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d73ad9021fc4df50106faf32845d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2e4b89c811870ad7786b35940398ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66757584d80b3e3f71ea5613861363ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d70cd8ef6f8d50638cefb528c60ac6.png)
其中正确的说法序号是
您最近一年使用:0次