解题方法
1 . 如图I为某同学搭建的立体几何模型,相关性质如图描述,其侧面展开图如图II所示.图I中,圆锥
的半径为3,体积为12π. 在等腰
(可近似看作与扇形KUN重合)中,
.中间圆柱展开图可看作正方形.圆柱J-G中,半径为3,体积为45π.侧面非阴影部分的圆边共占20%.设圆O所在平面为
,圆G所在平面为
,各立方体平稳放置,回答以下问题:
.
(2)试求K到G的距离及阴影部分面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181928a80db33cfb7b903f50ebad01f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c27f6dcfcbc956cab53d53f39d5c47d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c11a3684becedd099419cc3fc019373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce52a7419783b3542d19b755e2cb028d.png)
(2)试求K到G的距离及阴影部分面积.
您最近一年使用:0次
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解题方法
2 . 如图,在四棱锥
中,四边形
是矩形,平面
平面
,点E,F分别为
、
的中点.
(1)求证:
平面
;
(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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/2/66831cb6-94e7-41c0-a792-1ab136afb958.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06222ee533c2484ab25321a6abbf98cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c159d0c7cd88a41801ccbbd8e42f6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd1bc6147d69777b26a35d48522f7e.png)
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2023-08-01更新
|
226次组卷
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13卷引用:【全国百强校】四川省双流县棠湖中学2017-2018学年高二下学期期末考试数学(文)试题
【全国百强校】四川省双流县棠湖中学2017-2018学年高二下学期期末考试数学(文)试题贵州省思南中学2018-2019学年高二下学期期末数学(文)试题云南省昆明行知中学2022-2023学年高一下学期期末模拟拉练三数学试题贵州省黔东南州2018届高三下学期第二次模拟考试数学(文)试题【全国百强校】湖南省长郡中学2018届高三下学期第一次模拟考试数学(文)试题【全国校级联考】广东省(宝安中学、 潮阳一中、桂城中学、南海中学、普宁市第二中学、中山中学、仲元中学)2018届高三5月七校高考冲刺交流数学(文)试题辽宁省六校协作体2019-2020学年高三上学期开学考试数学(文)试卷2019年四川省仁寿一中等西南四省八校高三9月份联考数学(文)试题湖南师大附中2020届高三下学期月考(七)数学(文)试题(已下线)专题8.4 直线、平面平行的判定及性质(精练)-2021年高考数学(文)一轮复习讲练测山西省山西大学附属中学2020-2021学年高二上学期期中数学(文)试题山西省太原市山西大学附属中学2020-2021学年高二上学期模块诊断数学试题山东省烟台第一中学2023-2024学年高二下学期2月月考数学试题
名校
3 . 如图,在三棱台
中,已知平面
平面
,
,
,
.
(1)证明:
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986ba572d8373df48c996f8c8611498c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d052663101ca930843abd98cbd61c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de19416fa3c38b1b82abf0937573f9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/283c8668ca30b171ee4352452e1c7e94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/2/06047b09-1529-4036-8dc3-a21de78bf9d0.png?resizew=195)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5232ca3c1e0ce4064d0094502aacb063.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03edbab2be470153ed4ebe16c25430b9.png)
您最近一年使用:0次
4 . 如图,在四棱锥
中,
为正三角形,底面
为直角梯形,
,
,点
在线段
上,且
,点
为
中点.
平面
;
(2)设二面角
为
,若
,求四面体
的体积最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a4b8b69b419c557ba61a2bdfaf4066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8097cd7bc27d855f575cdaf0fbe91f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7810c8f82401b39bccb02ce28a7da692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a2daad3e59f5fc609616df750a3b532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
(2)设二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c911b404bbb8f8d5f1470585fa31ad97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e49129bc80bb9b119c94d81deb177f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2919dd96790067c1694ba4d6952c5a31.png)
您最近一年使用:0次
2023-08-01更新
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329次组卷
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3卷引用:湖北省武汉市江岸区2020-2021学年高一下学期期末数学试题
湖北省武汉市江岸区2020-2021学年高一下学期期末数学试题湖北省武汉市江北重点高中2020-2021学年高一下学期期末数学试题(已下线)高一数学期末测试卷01-《期末真题分类汇编》(人教B版2019必修三+必修四)
5 . 如图,在三棱柱
中,
平面
是
的中点.若平面
与底面
所成的二面角是
.
(1)求
的长度;
(2)求
与平面
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83eec25a7b39736f0351204330e30265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/2/bb796542-c867-490f-80aa-7fec56720d63.png?resizew=164)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
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2023-08-01更新
|
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|
2卷引用:湖北省武汉市江岸区2020-2021学年高一下学期期末数学试题
6 . 正四棱台
,
,AB=4,
.
(1)求异面直线
,BC所成的角的余弦值;
(2)求正四棱台的体积;
(3)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188dfa1c5859c7d1084abe8adc559df6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
(2)求正四棱台的体积;
(3)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
您最近一年使用:0次
7 . 如图,在四棱锥
中,底面
为等腰梯形,
,
,
平面
,
,点
为线段
中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/a9f935db-30a7-4ee1-b8c9-ef0bdf23f907.png?resizew=156)
(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/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e0b64d25ddd18454f88e40c45d7d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39c049bbf873a6af116712840484b98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/a9f935db-30a7-4ee1-b8c9-ef0bdf23f907.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5000fea066102e62cf2128ccbbd2b3e3.png)
您最近一年使用:0次
2023-07-31更新
|
549次组卷
|
2卷引用:福建省福州市福清港头中学2022-2023学年高二下学期期末质量检查数学试题
解题方法
8 . 如图,在四棱柱
中,
平面
,
,
,
,
,
为
的中点.
(1)求四棱锥
的体积;
(2)设点
在线段
上,且直线
与平面
所成角的正弦值为
,求线段
的长度;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633bf2de732ae51fc06ef3d559915da0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339a40ae9d1947ec3a4b3e2fa3a16cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/2/5bc52447-876d-4400-af18-8b3581f05546.png?resizew=164)
(1)求四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49689db6053838426c8932826b9932a9.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e516121599c9fcc528121c00afcf52fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
您最近一年使用:0次
解题方法
9 . 如图,AB是
的直径,PA垂直于
所在的平面,C是圆周上不同于A,B的一点,E,F分别是线段PB,PC的中点,
,
,
.
(1)求证:
平面AEF;
(2)求证:
平面PAC;
(3)求点P到平面AEF的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45619a06a44d4a292d90aedb8cecf51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbde174e69a0ce703629c25078b383c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/d092cd68-b8a8-4ea0-9cb8-7403077fbc38.png?resizew=167)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f8b463fcecf0a757f386db56e074d9.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
(3)求点P到平面AEF的距离.
您最近一年使用:0次
10 . 如图,在四棱锥
中,
底面
,
,
,
,
,
为棱
的中点,
是线段
上一动点.
(1)求证:平面
平面
;
(2)若直线
与平面
所成角的正弦值为
时,求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.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/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5acb763021bf166ca719d07223591d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81981fd7b343f4fe2db8f36eb66c1ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/8/d4286cb6-0a12-4bed-ab7b-9b322fe4a4a7.png?resizew=207)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a3fd5284e160896f07ce367645fd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
您最近一年使用:0次
2023-07-31更新
|
901次组卷
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5卷引用:福建省福州市第四十中学2022-2023学年高二下学期期末阶段练习数学试题
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