名校
1 . 如图,圆台
的轴截面为等腰梯形
,
,B为底面圆周上异于A,C的点.
内,过
作一条直线与平面
平行,并说明理由;
(2)设平面
∩平面
,
与平面QAC所成角为
,当四棱锥
的体积最大时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e53b212640dadf751ef7f65a78a209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c6d80251fdeabfebd65bca460d55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f664c0db517bec6886ff0b6100fd474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc9ffc43a56921fe79f8602636b8b0f.png)
(2)设平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc9ffc43a56921fe79f8602636b8b0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0bd886276f8ff9df2a42013b337d726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a0c82028e1259f300facd32775a15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c6c1f6d821af7e3c8058993218a861.png)
您最近一年使用:0次
2023-02-25更新
|
2338次组卷
|
8卷引用:河南省焦作市博爱县第一中学2024届高三下学期第二次模拟考试数学试题
名校
解题方法
2 . 在四棱锥
中,四边形ABCD是边长2的菱形,△PAB和△PBC都是正三角形,且平面PBC⊥平面PAB.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/30/8571a6e6-9efb-4e42-b503-924450605a22.png?resizew=162)
(1)求证:AC⊥PD;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/30/8571a6e6-9efb-4e42-b503-924450605a22.png?resizew=162)
(1)求证:AC⊥PD;
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddfe0ccf24d760c77535a70c92dad145.png)
您最近一年使用:0次
3 . 如图,在四棱锥
中,
底面ABCD,梯形ABCD中,
,
,E是PD的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/eb530d1f-3041-470d-8f42-745315e0c539.png?resizew=191)
(1)求证:平面
平面PBC;
(2)若
,求P到平面AEC的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f1897a7e856b42f8cee0f286ad913d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613a211e36a29475966932a7f9d20ce9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/1/eb530d1f-3041-470d-8f42-745315e0c539.png?resizew=191)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677d1863ff4d8ac1604b18149d4f320f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cd5c4f8b106d01e0e431078e1a468b.png)
您最近一年使用:0次
2022-12-31更新
|
440次组卷
|
3卷引用:河南省TOP二十名校2022-2023学年高三上学期调研模拟卷二文科数学试题
河南省TOP二十名校2022-2023学年高三上学期调研模拟卷二文科数学试题(已下线)江西省五市九校协作体2023届高三第一次联考文科数学试题变式题16-202023届四川省名校联考高考仿真测试(二)文科数学试题
名校
解题方法
4 . 如图,在直三棱柱
中,
,侧面
为正方形,点D,E,F,G分别为棱
,
,
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/74456eac-d6ea-4deb-8b97-12002ac7fec6.png?resizew=177)
(1)求证:GE
平面
;
(2)若二面角
的余弦值为
,且
,求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/74456eac-d6ea-4deb-8b97-12002ac7fec6.png?resizew=177)
(1)求证:GE
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcde95887c97c8b30fd5e7b91ca1df64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55176f6357df50f85d36b732e31972d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eabf6d88c08cd4cafa836408417230b6.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,在三棱柱
中,
,
,
与
相交于点
,且
为等边三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/6dcf84c3-da5d-44d4-86f4-19e17fde3854.png?resizew=139)
(1)求证:
平面
;
(2)若
,三棱锥
的体积为
,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06b0e94cdaa7ae2b15cedcb9ea02701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252143a7b900d33862f60b2536f6a8ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be53463db6088f772a0917a957794be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/6dcf84c3-da5d-44d4-86f4-19e17fde3854.png?resizew=139)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac61c24f99a4e466f1e2ea011893866.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3e436ddc72fe32987e5194285951a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de570eefaadf8f41dc67a2a785daae82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
您最近一年使用:0次
名校
解题方法
6 . 如图,在四棱锥
中,
为正方形,平面
平面
,
是直角三角形,且
,
,
,
分别是线段
,
,
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/8475e426-0375-48c5-a6b5-948995dc4891.png?resizew=176)
(1)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
平面
;
(2)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/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2753753faf2cb9a0003aa8e3945159.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/8475e426-0375-48c5-a6b5-948995dc4891.png?resizew=176)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2c673e86dc8bf49f3b34256ee79679.png)
您最近一年使用:0次
2022-12-27更新
|
650次组卷
|
5卷引用:河南省部分重点高中2022-2023学年高三上学期12月联合考试数学(文)试卷
河南省部分重点高中2022-2023学年高三上学期12月联合考试数学(文)试卷河南省部分重点高中2022-2023学年高三上学期12月联合考试数学(理)试题河南省安阳市林州市林虑中学2022-2023学年高三上学期调研(期末)理科数学试题河南省安阳市林州市林虑中学2022-2023学年高三上学期调研(期末)文科数学试题(已下线)专题8.15 空间中线面的位置关系大题专项训练(30道)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)
7 . 如图,在三棱柱
中,
,
,
,点D,E,F分别为线段BC,
,
的中点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4f660dc7-5717-4a1d-a00f-64f85d80e8c8.png?resizew=255)
(1)证明:平面
平面ABC;
(2)若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cfb38323095090b0fe5eee70b24210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e3c9e7c05de9838c0c5d762720d3ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f752d8a27ed612c37ddc86e8b483a243.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/4f660dc7-5717-4a1d-a00f-64f85d80e8c8.png?resizew=255)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cdaadeae37736a1e6dd93fa1fe712f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/610038cde1968e0a15792ce77dd0e99f.png)
您最近一年使用:0次
2022-12-26更新
|
604次组卷
|
5卷引用:河南省(菁师联盟)2022-2023学年高三上学期12月质量监测考试(文科)数学试题
河南省(菁师联盟)2022-2023学年高三上学期12月质量监测考试(文科)数学试题河南省信阳高级中学2023届高三下学期开学考试文科数学试题(已下线)河南省济源市、平顶山市、许昌市2022届高三文科数学试题变式题16-20陕西省西安市西安交大附中2024届高三上学期第六次诊断考试数学(文)试题(已下线)8.6.3平面与平面垂直(第1课时平面与平面垂直的判定定理)(精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
名校
解题方法
8 . 如图,四面体ABCD中,O,E分别是BD,BC的中点,CA=CB=CD=BD=2,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/e2c85236-8f8d-40b5-9744-a9381c8d2e86.png?resizew=200)
(1)求证:
平面BCD;
(2)求点E到平面ACD的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65d5853c26657db448af610ac72cca4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/e2c85236-8f8d-40b5-9744-a9381c8d2e86.png?resizew=200)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
(2)求点E到平面ACD的距离.
您最近一年使用:0次
2022-12-17更新
|
954次组卷
|
7卷引用:河南省郑州市励德双语学校2022-2023学年高三上学期期末考试文科数学试题
河南省郑州市励德双语学校2022-2023学年高三上学期期末考试文科数学试题吉林省四平市第一高级中学2021-2022学年高三上学期期末考试数学(文)试题(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(精练)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)8.6.2直线与平面垂直的判定定理(第1课时)(精讲)(1)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)(已下线)微专题17 空间中的五种距离问题(1)(已下线)8.6.2 直线与平面垂直(1) -2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)山西省大同市博盛中学2022-2023学年高二下学期期末数学试题
解题方法
9 . 如图,在长方体
中,已知
,E为BC中点,连接
,F为线段
上的一点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/18/b4af1959-b869-49a2-a111-712cd612aad4.png?resizew=174)
(1)证明:
平面
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d33097bebf5ccd87baaa7cf53a9e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f914f4c5d9076d4f7c246017a72fc440.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/18/b4af1959-b869-49a2-a111-712cd612aad4.png?resizew=174)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e0bd4b30dc777ac9da80f6baa3eb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2331bccb6ebf5b9fd639df994f575a9.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29e6799bbe4b9e904b77bef68f42d6e.png)
您最近一年使用:0次
名校
解题方法
10 . 如图,在三棱柱
中,底面是边长为
的正三角形,侧棱
的长为
,
,
分别是棱
,
的中点,平面
平面
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/10a88956-e4b9-49ef-b1f2-1ce906cd2fa2.png?resizew=166)
(1)求证:
;
(2)若三棱柱
的侧面积为
,求它的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24d95e0548b340af8783a57bdfd05b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd14966183389b10618cbe33fd777407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8b5a6dbcf05f572f83f51abf7d668c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbbcd834a74c1cec2934920580788e31.png)
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2022-12-11更新
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658次组卷
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3卷引用:河南省商丘市部分学校2022-2023学年高中毕业班阶段性测试(三)文科数学试题