名校
解题方法
1 . 已知正四面体
的棱长为3,点
在棱
上,点
在线段
上,且
.
在棱
的中点处,求证:
平面
;
(2)如图2,若
,求三棱锥
的体积;
(3)如图3,当点
在棱
上移动时,求线段
长度的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb91cb9a5a14169845d700fbd95890ac.png)
![](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/97f30533da2e1d2a958dc906c37eba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71fa9bb19d1d32270248f377363cd96a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209e3b87346e057276f0692a7361e446.png)
(3)如图3,当点
![](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/4cae70b8a9d2d2e96dea62c00ced04b9.png)
您最近一年使用:0次
名校
2 . 如图,在直三棱柱
中,
,
,
为
的中点.
平面
.
(2)若以
为直径的球的表面积为
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95578eba5dd34ca64b5f228640819cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b531aaca9d037a0d047511eec8f350ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504a36c231b8e80724d01649e7c0944f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41104641f3e2260d00aeadf8fb8a078a.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95265f94a8eb7f76b5db6875246a091d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee527f97d0bfc89f791b728d80e562d3.png)
您最近一年使用:0次
2024-04-20更新
|
1392次组卷
|
3卷引用:江西省赣州市十八县(市)二十四校2023-2024学年高二下学期期中考试数学试题
名校
3 . 如图,在四棱台
中,
平面
.底面
是平行四边形,
,
,连接
、
,设交点为
,连接
.
(1)证明:
;
(2)若
,且二面角
大小为60°,求三棱锥
外接球的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddbb0422a136f45653c8c369f2d75fc.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/8a70704be2a2ac7bee6865ed51fe8fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172e5fbd9df8b19e0786fad909d36d63.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/8/b8ba545b-2093-41e2-8e24-216234d7a43f.png?resizew=178)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a27bad0636a087e38bb1d253d66a231d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6997af36a239195f7b55557242cb03c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95591ee02fbdff38562a8e7a60a2ffd3.png)
您最近一年使用:0次
名校
4 . 如图,在四棱锥
中,
面
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/4/ff989604-a9bb-454d-8888-c995f4a9c305.png?resizew=161)
(1)求三棱锥
内切球的体积.
(2)求平面
与平面
的夹角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c66c71528ef937fdfc7c80798c46b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9a222b416eb9cdd0cc26119707b3f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/4/ff989604-a9bb-454d-8888-c995f4a9c305.png?resizew=161)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
2023高二上·上海·专题练习
解题方法
5 . 已知一个表面积为
的正方体的四个顶点在半球的球面上,四个顶点在半球的底面上,求半球的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab3c56d6b15852879446ec184863d40.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/2e8e860f-d6c0-408d-80d2-a68c2c650ca3.png?resizew=144)
您最近一年使用:0次
名校
6 . 已知圆锥的顶点为
,
为底面圆心,
,异面直线
与
所成角的余弦值为
,
的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/6282a5fe-9f1b-4ba2-9b49-9c65dbb578de.png?resizew=147)
(1)求该圆锥的表面积;
(2)求该圆锥内半径最大的球的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950e673dc286ecdfa54dc7ab146770b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6486784415f3537c9a13556c05d893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e49817548cb45b3d1e58570644c6fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/461dc722a8b3edc8147bf7b5f6e6eb11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/12/6282a5fe-9f1b-4ba2-9b49-9c65dbb578de.png?resizew=147)
(1)求该圆锥的表面积;
(2)求该圆锥内半径最大的球的体积.
您最近一年使用:0次
2023-12-12更新
|
222次组卷
|
2卷引用:浙江省强基联盟2023-2024学年高二上学期12月联考数学试卷
解题方法
7 . 如图,已知球的表面积为
,
是该球的内接长方体(即该长方体的八个顶点均在球面上)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b65065ec3a0cb4b050989165c003d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65fc998d33cdf37c272f79cfd64b7b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,在
中,
,斜边
是
的中点,现将
以直角边
为轴旋转一周得到一个圆锥,点
为圆锥底面圆周上的一点,且
.
(2)若某动点在圆锥侧面上运动,试求该动点从点
出发运动到点
所经过的最短距离;
(3)若一个棱长为
的正方体木块可以在这个圆锥内任意转动,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991c8373be20b4325ba779e4dfdc8b15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7468a5b7fffe9d46e925874a866f6629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c633830c6e2ac6d8d6e18890ef5ee33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886c25cbaff27a9c4cf52dacec0eac4c.png)
(2)若某动点在圆锥侧面上运动,试求该动点从点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)若一个棱长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-11-14更新
|
510次组卷
|
4卷引用:上海市南汇中学2023-2024学年高二上学期期中数学试题
上海市南汇中学2023-2024学年高二上学期期中数学试题(已下线)8.3简单几何体的表面积与体积【第三练】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)8.3.2 圆柱、圆锥、圆台、球的表面积和体积-同步精品课堂(人教A版2019必修第二册)福建省南安市蓝园高级中学2023-2024学年高一下学期期中考试数学试题
名校
9 . 已知圆锥的顶点为P,母线
所成角的余弦值为
,轴截面等腰三角形的顶角为
,若
的面积为
.
(1)求该圆锥的侧面积;
(2)求圆锥的内切球体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0468237bbc0d3df77435d98b817c10c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e609d7f5a3b904e30f43fbbc26033d7.png)
(1)求该圆锥的侧面积;
(2)求圆锥的内切球体积.
您最近一年使用:0次
2023-11-13更新
|
396次组卷
|
5卷引用:江西省景德镇市昌江区景德镇一中2023-2024学年高二上学期11月期中考试数学试题
江西省景德镇市昌江区景德镇一中2023-2024学年高二上学期11月期中考试数学试题(已下线)考点7 组合体的内切 2024届高考数学考点总动员【练】(已下线)专题8.3 简单几何体的表面积与体积-举一反三系列(人教A版2019必修第二册)(已下线)高一下学期期中复习解答题压轴题十八大题型专练(2)-举一反三系列(人教A版2019必修第二册)山东省菏泽市菏泽一中系列2023-2024学年高一下学期4月期中考试数学试题(A)
10 . 我国古代数学名著《九章算术》,将底面为矩形且有一条侧棱垂直于底面的四棱锥称为“阳马”.如图所示,在长方体
中,已知
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/064926f8-580d-47cb-ba38-0fa73946e3aa.png?resizew=134)
(1)求证:四棱锥
是一个“阳马”,并求该“阳马”的体积;
(2)求该“阳马”
的外接球的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/064926f8-580d-47cb-ba38-0fa73946e3aa.png?resizew=134)
(1)求证:四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec35c2182c5e0c80b766adceb058e5f.png)
(2)求该“阳马”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec35c2182c5e0c80b766adceb058e5f.png)
您最近一年使用:0次