在正三棱锥
中,O,E,F分别是线段AC,AD,BD的中点,G是OC的中点,且
.
![](https://img.xkw.com/dksih/QBM/2022/5/13/2978458749018112/2981260636577792/STEM/f1a094eb-79b7-4c26-b9e8-a9f5de30ded7.png?resizew=286)
(1)在BC上是否存在一点H?使得平面
平面BOE;
(2)若点M是FG的靠近点F的三等分点,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4357d5744046d4d44abb09e1ee35fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f443adba65bafc6afe4de77820c31528.png)
![](https://img.xkw.com/dksih/QBM/2022/5/13/2978458749018112/2981260636577792/STEM/f1a094eb-79b7-4c26-b9e8-a9f5de30ded7.png?resizew=286)
(1)在BC上是否存在一点H?使得平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a5831bd2d949ed609b0f0fd68d0729.png)
(2)若点M是FG的靠近点F的三等分点,求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd35eb631ea35264765e8a0799e15d9.png)
21-22高一下·重庆渝中·期中 查看更多[3]
重庆市巴蜀中学校2021-2022学年高一下学期期中数学试题山西省晋中市新大陆双语学校2021-2022学年高一下学期5月月考数学试题(已下线)第08练 点线面的位置关系-2022年【暑假分层作业】高一数学(苏教版2019必修第二册)
更新时间:2022-05-17 11:33:12
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相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】如图,边长为2的正方形
所在平面与半圆弧
所在的平面垂直,
是弧
上异于
,
的点.平面
与平面
的交线为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/fa9b6e2c-8681-4f3f-8314-2382f8ad9441.png?resizew=180)
(1)证明:
⊥平面
;
(2)点
在线段
上,满足
,当点
到平面
的距离为
时,判断
点在弧
的位置,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8a20c1fc8a5620db5db3a74eb01201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c5ef850e256c98ca4f033999e61311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/17/fa9b6e2c-8681-4f3f-8314-2382f8ad9441.png?resizew=180)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89abfe070487c1296d855093aa9596e4.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26629ff3211cf9b0e45b30a0730a3024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc46688d8723cf2003fc25890265200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/072c32b9948144d040a9a83f8d11ea8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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解答题-证明题
|
适中
(0.65)
解题方法
【推荐2】如图甲,已知四边形ABCD是直角梯形,E,F分别为线段AD,BC上的点,且满足
,
,
,
.将四边形CDEF沿EF翻折,使得C,D分别到
,
的位置,并且
,如图乙.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/15/16a650ec-f3f9-4ca4-8bd3-5b507bcef11c.png?resizew=365)
(1)求证:
;
(2)求点E到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d40e403b138555d6a6fe99b26ee7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dda460b3099274f7ec63376b035c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d35d8d8bb0dc17f2f86fe5b230a2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb79e86ac3a8a4f97e760e2dec04ad8d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/15/16a650ec-f3f9-4ca4-8bd3-5b507bcef11c.png?resizew=365)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21460a8145ad1b2c22eb6d42d706a43e.png)
(2)求点E到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679748eab882a6be0fefd2cc300349a4.png)
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【推荐1】如图,在四棱锥
中,
为等边三角形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/dbfe6b5a-5e74-4710-9906-ed01f8c35cf8.png?resizew=218)
(Ⅰ)若点
为
的中点,求证:
平面
;
(Ⅱ)求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02bd5cfe804460846423e77f72db10f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397bf976a5d6ea47153fb564cc8ea190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822728cf620309a9d0d1bf661e964b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e37d3fb7407af74cbd242f606eadd710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aaaa7abe827f3de2be324647ca92bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d918ea86001c635eeede8d3fcc3a31.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/dbfe6b5a-5e74-4710-9906-ed01f8c35cf8.png?resizew=218)
(Ⅰ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d260c4df7b0dc180af6980d21f3371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5258a6f9c63914b9e2ec95b6d39313b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3520ee9cc97a075e889e1625dba1157c.png)
(Ⅱ)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02bd5cfe804460846423e77f72db10f.png)
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【推荐2】如图,
为圆锥的顶点,
为圆锥底面的圆心,
为底面直径,
为底面圆周上一点,
,四边形
为矩形,点
在
上,且
平面
.
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973651645530112/2974963590799360/STEM/68b66aa8-c580-412a-8ce6-923d1ec1ca0c.png?resizew=289)
(1)请判断点
的位置并说明理由;
(2)平面
将多面体
分成两部分,求体积较大部分几何体的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfe71b1bd5d58b604e0f1ff775fb92a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d2806aad4bdfa727f3d4150434ab055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2b5cfae407016cad45bbdefea05833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973651645530112/2974963590799360/STEM/68b66aa8-c580-412a-8ce6-923d1ec1ca0c.png?resizew=289)
(1)请判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c761098c711ffc8ad047a6867d2a268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18145e24844c08cb2cc05f69cfbb1c5a.png)
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名校
【推荐3】如图,AP是圆柱的母线,正△ABC是该圆柱的下底面的内接三角形,D,E,F分别为BC,PB,AB的中点,G是EF的中点,且AP=AC.
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854639979487232/2858441973432320/STEM/c4c74883-a062-4fd1-9673-0b9c6354a888.png)
(1)求证:DG
平面PAC;
(2)求直线DG与平面PBC所成角的正弦值.
![](https://img.xkw.com/dksih/QBM/2021/11/19/2854639979487232/2858441973432320/STEM/c4c74883-a062-4fd1-9673-0b9c6354a888.png)
(1)求证:DG
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
(2)求直线DG与平面PBC所成角的正弦值.
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解题方法
【推荐1】如图所示,在四棱锥
中,BC//平面PAD,
,E是PD的中点.
(2)若M是线段CE上一动点,则线段AD上是否存在点
,使MN//平面PAB?说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e306e30d3159e4a68435c3fcfc8da693.png)
(2)若M是线段CE上一动点,则线段AD上是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】如图所示,正方形
的边长为
,
、
分别为
、
的中点,
、
是平面
同一侧的两点,
平面
,
,
.
![](https://img.xkw.com/dksih/QBM/2020/12/6/2608413667966976/2609223078838272/STEM/3f054667dc6a452cab4a36367e2f59ac.png?resizew=358)
(1)设
,
为
上一点,若
平面
,求
;
(2)证明:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39967d6f3aed6ce7b6643787795d451d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2eae6af16797f2ab8efc6041806677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3de3236e61ff954df9dd9872bf7d95e3.png)
![](https://img.xkw.com/dksih/QBM/2020/12/6/2608413667966976/2609223078838272/STEM/3f054667dc6a452cab4a36367e2f59ac.png?resizew=358)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23f01af749100e1888bba06268843db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dafebaaf13781120dc57c277d0267c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae7bf236e8637182a1553ce36bd9c67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94cc30d46b4538a4c86064df7460356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3892b3fc0601d3a4b567fac01d9b2a0.png)
(2)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1f07df5692e4c4e2db643aefdd0d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94cc30d46b4538a4c86064df7460356.png)
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