名校
解题方法
1 . 如图所示,在直三棱柱
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3371affe8a6bb77078b4edab77b1227f.png)
![](https://img.xkw.com/dksih/QBM/2022/6/4/2994043638784000/2995047023394816/STEM/99133153dbf7456f96b42d1db281fd44.png?resizew=152)
(1)当P为
的中点时,求证:
平面
;
(2)当
时,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3371affe8a6bb77078b4edab77b1227f.png)
![](https://img.xkw.com/dksih/QBM/2022/6/4/2994043638784000/2995047023394816/STEM/99133153dbf7456f96b42d1db281fd44.png?resizew=152)
(1)当P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4145f6d9dd03cd2317f9d999991e8c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06ed3e88f623ed9313d06b1bb2a87ee.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34b7435f674beb041681fd5615a5b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dda24f918ca93438191b8847cc920411.png)
您最近一年使用:0次
2022-06-05更新
|
729次组卷
|
4卷引用:安徽省合肥市第八中学2022届高三下学期高考最后一卷文科数学试题
安徽省合肥市第八中学2022届高三下学期高考最后一卷文科数学试题(已下线)2022年全国高考甲卷数学(文)试题变式题9-12题(已下线)2022年全国高考甲卷数学(文)试题变式题17-20题河南省顶级名校2023届高三一轮复习10月月考文科数学试题
名校
解题方法
2 . 如图,三棱柱
中,面
面
,
.过
的平面交线段
于点
(不与端点重合),交线段
于点
.
为平行四边形;
(2)若
到平面
的距离为
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425dbda940137a78a109969e66665487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70d708336d4f15e7fca0b26acb353b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.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/14bbb740f8bc13b4be8ca4dc0aef5442.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27039783266a69df2a96ea0c36cbdcd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27039783266a69df2a96ea0c36cbdcd5.png)
您最近一年使用:0次
2022-05-30更新
|
1452次组卷
|
7卷引用:安徽省定远中学2023届高三下学期高考冲刺卷(一)数学试卷
3 . 如图,四棱锥
中,
平面
,
平面
,
,F,M,N分别为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/22/2984742987235328/2984796227846144/STEM/e23ba5e2-36e7-4b8e-b0dc-e2eca82bebcf.png?resizew=168)
(1)求证:
∥平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1e038b4e76b3a368731d3331522b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b93d05221efb08e59809b66796030a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84dd030d3a6921f0806543b892f5b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3934576dbcbf6a06f86d634c1109628e.png)
![](https://img.xkw.com/dksih/QBM/2022/5/22/2984742987235328/2984796227846144/STEM/e23ba5e2-36e7-4b8e-b0dc-e2eca82bebcf.png?resizew=168)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
您最近一年使用:0次
2022-05-22更新
|
1350次组卷
|
2卷引用:安徽省安庆市怀宁县高河中学2024届高三上学期12月月考数学试题
名校
解题方法
4 . 如图,四棱锥
的底面是平行四边形,设平面
与平面
的交线为直线
.
![](https://img.xkw.com/dksih/QBM/2022/5/21/2984179076702208/2984791109484544/STEM/5cddd2d0bf7f4804a9b2dbb9c3e0602b.png?resizew=189)
(1)证明:
∥平面
;
(2)若
平面
,证明:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2022/5/21/2984179076702208/2984791109484544/STEM/5cddd2d0bf7f4804a9b2dbb9c3e0602b.png?resizew=189)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579d61a196f109c57f6a7267ac74c54a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
5 . 如图①,四边形
是等腰梯形,
,E是
的中点,将
沿
折起,构成如图②所示的四棱锥
.
![](https://img.xkw.com/dksih/QBM/2022/5/7/2974359159758848/2975238663192576/STEM/3b0d40e0-d756-47e9-b953-5d558c455cab.png?resizew=383)
(1)设M是
的中点,在线段
是否存在一点N,使得
平面
?如果存在,求出点N的位置;如果不存在,请说明理由.
(2)如果平面
平面
,求平面
与平面
所成锐二面角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de48e4e9248bc96e8d9e8c44f4393c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b43490ca09467a4c8cd8cfe91c94e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7d528d7d5aea71bb3d9df16055c2a7.png)
![](https://img.xkw.com/dksih/QBM/2022/5/7/2974359159758848/2975238663192576/STEM/3b0d40e0-d756-47e9-b953-5d558c455cab.png?resizew=383)
(1)设M是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f611f5bb08a66cae8fe411e59a1c08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d351375de26204dc4fa14aed92863f.png)
(2)如果平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fd4f68511d2393905617bfdeddddec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ef4384024108d23c4e6493cc607831.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d351375de26204dc4fa14aed92863f.png)
您最近一年使用:0次
6 . 如图,在四棱锥
中,
,
,平面
平面
,平面
与平面
相交于直线
.
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973695823781888/2975126406897664/STEM/709e22ae-91dd-4358-a125-a4ba46e10140.png?resizew=188)
(1)证明:
;
(2)若
,二面角
是60°,点
是直线
上异于点
的一点,且直线
和平面
所成角的正弦值是
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973695823781888/2975126406897664/STEM/709e22ae-91dd-4358-a125-a4ba46e10140.png?resizew=188)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/accaf93ff49f53627bb3808899e55941.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/409b1071f7d977666dc7f4ce48349d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4afc5ee7b66a33ed0ddf27c52e49c6bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2246c0e92e8cc344f636ea8f8f9037e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b9916c9c39d7bfe5f04dd41e867aba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
您最近一年使用:0次
名校
解题方法
7 . 如图,在正方体
中,E,F分别为棱
的中点.
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973134251614208/2974713316392960/STEM/7768e686-6404-4227-9c96-f49bca0f961f.png?resizew=175)
(1)求证:平面
平面BDF;
(2)求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49bc70cf1e4f89142cccea300673acf0.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973134251614208/2974713316392960/STEM/7768e686-6404-4227-9c96-f49bca0f961f.png?resizew=175)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695cabf74cf8a3ffbe328f66168fc59b.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
您最近一年使用:0次
8 . 如图,在棱长为2的正方体
中,E,F分别为棱
的中点
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973134264713216/2974146044059648/STEM/ac2d631e05594f7d81a414ed25fce026.png?resizew=184)
(1)求证:平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
平面
;
(2)求点C到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49bc70cf1e4f89142cccea300673acf0.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973134264713216/2974146044059648/STEM/ac2d631e05594f7d81a414ed25fce026.png?resizew=184)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae8768996ca9a0f2c5d9a19abbd54df.png)
(2)求点C到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3ef97d64e58d311019b70fe5e2cc0d.png)
您最近一年使用:0次
名校
9 . 如图所示,直三棱柱
的所有棱长均相等,点
为
的中点,点
为
的中点.
![](https://img.xkw.com/dksih/QBM/2022/4/27/2967030284017664/2967848002502656/STEM/a6999637-3ab4-41bd-b4a7-335865dba36e.png?resizew=148)
(1)求证:
平面
;
(2)若三棱锥
的体积为
,求该三棱柱的外接球表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/2022/4/27/2967030284017664/2967848002502656/STEM/a6999637-3ab4-41bd-b4a7-335865dba36e.png?resizew=148)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75aea24647cd4d0b4b9aa513bf5457b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42e4d3ce220fd60e952c957fb71a6d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
您最近一年使用:0次
2022-04-28更新
|
820次组卷
|
3卷引用:安徽省六安市舒城中学2022届高三下学期仿真模拟(三)文科数学试题
安徽省六安市舒城中学2022届高三下学期仿真模拟(三)文科数学试题(已下线)第二章 立体几何中的计算 专题六 几何体的外接球、棱切球、内切球 微点4 圆柱、直三棱柱及其切割体模型综合训练【基础版】山西省大同市第三中学校2021-2022学年高一下学期期中数学试题
名校
解题方法
10 . 如图,在四棱锥
中,
,底面
为梯形,
,
.
中,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/5c647464-d19b-4dc3-9ed0-c3f2a30d2a08.png?resizew=158)
(1)若
是线段
上的点,平面
平面
,且
,试判断点
的位置并说明理由;
(2)若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f17680a23635f823b7dc446e4f3b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6acb69f52b245011a41daaefd5b2a316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d97afe2733b75e9ea3de65c882f851c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b10835116b9b777a666b438c907b49.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/8/5c647464-d19b-4dc3-9ed0-c3f2a30d2a08.png?resizew=158)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c44a3e2af1ebe34dd570dbd58c61dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747e7c4b2f940a9f0a7300a5d0f11cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5b5c88bed3eb4d5eb2f2a5d25f0bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb67f27bcda7681b19239a199b4c4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfe0ccf24d760c77535a70c92dad145.png)
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