名校
1 . 如图,在四棱锥
中,则面
底面
,侧棱
,底面
为直角梯形,其中
,
,
,
为
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/35e698c5-795d-43c6-9063-5d6b826555b8.png?resizew=159)
(1)求证:
平面
;
(2)求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/1328e05d150f86dbe18656662eaa8f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1e04eeb4de72e5750dae77bcb6f88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a93f5289c1483bc39b0125fdc8dd67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/35e698c5-795d-43c6-9063-5d6b826555b8.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
2023-12-19更新
|
553次组卷
|
2卷引用:江苏省扬州市扬州中学2024届新高考一卷数学模拟测试一
解题方法
2 . 如图,在正三棱柱
中,已知
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/15/0153429b-5f9a-41fa-8b45-af1efaab51f1.png?resizew=141)
(1)求直线
与
所成的角的大小;
(2)求证:平面
平面
,并求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/15/0153429b-5f9a-41fa-8b45-af1efaab51f1.png?resizew=141)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a7bcc1efb8a2ff57d64b6d057da463.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa046f0b820bd6c237ae6db5669fe13a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc7e774e4ae40c23bf4ceed179230ca.png)
您最近一年使用:0次
2023-04-13更新
|
1165次组卷
|
3卷引用:上海市金山区2023届高三二模数学试题
3 . 如图,在四棱锥
中,底面ABCD为平行四边形,O是AC与BD的交点,
,
,
平面ABCD,
,M是PD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/15/dfb1ab37-872d-47c8-adbb-b8042bb20d4b.png?resizew=217)
(1)证明:
平面ACM
(2)求直线AM与平面ABCD所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a9f94eb3be2852711c397ca09c30bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3951ea981df35681575d6e5db2c631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae890f9e8b32aa53a54158f24f4a87bc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/15/dfb1ab37-872d-47c8-adbb-b8042bb20d4b.png?resizew=217)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30067b7b236d17af8a462f96a58d11bd.png)
(2)求直线AM与平面ABCD所成角的大小.
您最近一年使用:0次
2023-04-13更新
|
1010次组卷
|
3卷引用:上海市松江区2023届高三二模数学试题
解题方法
4 . 如图,在四面体
中,已知
.点
是
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/85b85551-c18a-4f64-9dc1-259008436b93.png?resizew=185)
(1)求证:
平面
;
(2)已知
,作出二面角
的平面角,并求它的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09839f18ce99a8306c67db0ab89837ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/85b85551-c18a-4f64-9dc1-259008436b93.png?resizew=185)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e05af9d5eee38c20bc9d26612cffdcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c3762eb09409441a1d1d7c0ccbbe60.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,长方体
中,
,
与底面ABCD所成的角为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
.![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/f97947c7-6975-4907-8973-765e7764848d.png?resizew=138)
(1)求四棱锥
的体积;
(2)求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4957406b21df59fdf7fa184752287b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/f97947c7-6975-4907-8973-765e7764848d.png?resizew=138)
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2e341788ce1be913bc47b3831c6baa.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
您最近一年使用:0次
2022-12-12更新
|
497次组卷
|
3卷引用:上海市崇明区2023届高三上学期一模数学试题
6 . 如图,在四棱锥
中,
⊥平面
,正方形
的边长为
,
,设
为侧棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/3b4b1972-387a-4e1f-ba7f-9019f00d6f13.png?resizew=146)
(1)求四棱锥
的体积
;
(2)求直线
与平面
所成角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab2c27eac56fffa4cd7dbe1dcdf1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/3b4b1972-387a-4e1f-ba7f-9019f00d6f13.png?resizew=146)
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2022-11-23更新
|
537次组卷
|
8卷引用:2019年上海市宝山区高三上学期期末教学质量监测(一模)数学试题
名校
解题方法
7 . 如图所示,正四棱柱
的底面边长为
,侧棱长为
,设
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/28/28530037-4112-4a9a-9583-133d4f73d362.png?resizew=143)
(1)当
时,求直线
与平面
所成角的大小.(结果用反三角函数值表示);
(2)当
时,若
,且
,求正实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f30fc03b88685690910dcadc40fb93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/28/28530037-4112-4a9a-9583-133d4f73d362.png?resizew=143)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3cf0f585938ede9eca890a6eb326d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1158eaa2e338f564eb18de5bef1d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f83464bf17f9d4d9ee6a7f299539871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d925a956c694cc0a0761e61bd76be9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3156cc6f314f5360b7684e0bdf533eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2022-06-28更新
|
368次组卷
|
4卷引用:上海市普陀区2022届高考二模数学试题
上海市普陀区2022届高考二模数学试题新疆维吾尔自治区喀什第六中学2022-2023学年高二上学期第一次月考数学试题(已下线)第20讲 空间向量与立体几何-3(已下线)专题11空间向量与立体几何必考题型分类训练-2
名校
8 . 某公园计划在矩形空地上建造一个扇形花园如图①所示,矩形
的
边与
边的长分别为48米与40米,扇形的圆心
为
中点,扇形的圆弧端点
,
分别在
与
上,圆弧的中点
在
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/42c484aa-8b21-48d3-823e-7ba4dfeb255a.png?resizew=375)
(1)求扇形花园的面积(精确到1平方米);
(2)若在扇形花园内开辟出一个矩形区域
为花卉展览区.如图②所示,矩形
的四条边与矩形
的对应边平行,点
,
分别在
,
上,点
,
在扇形的弧上.某同学猜想:当矩形
面积最大时,两矩形
与
的形状恰好相同(即长与宽之比相同),试求花卉展览区
面积的最大值,并判断上述猜想是否正确(请说明理由).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/42c484aa-8b21-48d3-823e-7ba4dfeb255a.png?resizew=375)
(1)求扇形花园的面积(精确到1平方米);
(2)若在扇形花园内开辟出一个矩形区域
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.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/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
您最近一年使用:0次
2020-05-21更新
|
366次组卷
|
3卷引用:2020届上海市黄浦区高三二模(阶段性调研)数学试题
解题方法
9 . 如图,四棱锥
中,底面
为矩形,
底面
,
,
,
分别为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/b1e641bc-1e50-4f6f-946a-fd14cfad8bfe.png?resizew=197)
(1)求证:
、
、
、
四点共面;
(2)求异面直线
与
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7831ce178516de8ce45b05dd6401e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18a8fb41f1d09bc5791ad7fbe72593f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc72cba412508818056817a70552176.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/b1e641bc-1e50-4f6f-946a-fd14cfad8bfe.png?resizew=197)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
10 . 如图所示,某地出土的一种“钉”是由四条线段组成,其结构能使它任意抛至水平面后,总有一端所在的直线竖直向上,并记组成该“钉”的四条线段的公共点为O,钉尖为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/d2ea8c43-a52c-4bc9-8219-4a69fc5c0bb4.png?resizew=118)
⑴设
,当
,
,
在同一水平面内时,求
与平面
所成角的大小
结果用反三角函数值表示
.
⑵若该“钉”的三个钉尖所确定的三角形的面积为
,要用某种线型材料复制100枚这种“钉”
损耗忽略不计
,共需要该种材料多少米?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbf8ab39ad513802b852ebfdfee02c0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/d2ea8c43-a52c-4bc9-8219-4a69fc5c0bb4.png?resizew=118)
⑴设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1928def070e2f92b5351f55fbe8eda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4195334905e2f190f958dbf5951456f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fa6e3afb5196decc6f087cbfe40cf8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
⑵若该“钉”的三个钉尖所确定的三角形的面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5bd7b0be1368ed3601a7dd0dc721258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
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