已知直四棱柱
,其底面
是平行四边形,外接球体积为
,若
,则其外接球被平面
截得图形面积的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4d9a7c9b2ee0253a3a11d5117f9f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa142bb96af98b846997e681609739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae7f4612c548b1f72a964ddb291cd2e.png)
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2021·安徽蚌埠·二模 查看更多[7]
安徽省蚌埠市2020-2021学年高三上学期第二次教学质量检查理科数学试题(已下线)专题8.5 空间直线、平面的垂直(B卷提升篇)-2020-2021学年高一数学必修第二册同步单元AB卷(新教材人教A版,浙江专用)(已下线) 专题22 几何体的表面积与体积的求解 (测)-2021年高三数学二轮复习讲练测(文理通用)(已下线)解密13 空间几何体(分层训练)-【高频考点解密】2021年高考数学(理)二轮复习讲义+分层训练(已下线)专题17 立体几何外接球与内切球必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)(已下线)专题23 立体几何中的压轴小题-1(已下线)8.3简单几何体的表面积与体积——课后作业(巩固版)
更新时间:2021-02-03 21:14:26
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【推荐1】足球起源于中国古代的蹴鞠游戏.“蹴”有用脚蹴、踢的含义,“鞠”最早系外包皮革、内饰米糠的球,因而“蹴鞠”就是指古人以脚蹴、踢皮球的活动,已知某“鞠”的表面上有四个点
,满足
,
面ABC,
⊥
,若
,则该“鞠”的体积的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a0889f0f80987c260cce05be4c84b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b80ee363635d73f601654339028daec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca2a56f0be6e0c8b74292c89fb9f7cb.png)
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【推荐2】已知正四面体
的棱长为
,
,
分别是
,
上的点,过
作平面
,使得
,
均与
平行,且
,
到
的距离分别为2,4,则正四面体
的外接球被
所截得的圆的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec978eb43bc4f9e7df83b0d0195dcda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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【推荐1】如图所示,有一个棱长为4的正四面体
容器,
是
的中点,
是
上的动点,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/5/8ef89caf-283d-4645-944d-c6a96f88fb12.png?resizew=162)
① 若
是
的中点,则直线
与
所成角为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
②
的周长最小值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22aee699ef8f6dbd3debf798a3e7902.png)
③ 如果在这个容器中放入1个小球(全部进入),则小球半径的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
④ 如果在这个容器中放入10个完全相同的小球(全部进入),则小球半径的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab9ade9bfd2479c0a61bf0601b46a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/5/8ef89caf-283d-4645-944d-c6a96f88fb12.png?resizew=162)
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/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22aee699ef8f6dbd3debf798a3e7902.png)
③ 如果在这个容器中放入1个小球(全部进入),则小球半径的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
④ 如果在这个容器中放入10个完全相同的小球(全部进入),则小球半径的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab9ade9bfd2479c0a61bf0601b46a7.png)
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【推荐2】如图,已知正方体
的棱长为
为底面正方形
内(含边界)的一动点,则下列结论中:①若点
为
的中点,则
的最小值为
;②过点
作与
和
都成
的直线,可以作四条;③若点
为
的中点时,过点
作与直线
垂直的平面
,则平面
截正方体
的截面周长为
;④若点
到直线
与到直线
的距离相等,
的中点为
,则点
到直线
的最短距离是
.其中正确的命题有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/991e98f7-f97b-4672-82e1-668835677586.png?resizew=167)
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