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1 . 某广场设置了一些石凳供大家休息,这些石凳是由正方体截去八个相同的四面体得到的(如图),若被截正方体的棱长是6dm,那么该几何体的表面积是______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829047552d880c8fe5649217c74b5e17.png)
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2 . 在四面体
中,
,
,
.则四面体
外接球的表面积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914b46d61a079bf1bc64df25929cd95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd290d0347acf8157aecae80cdb8652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf91a833f6977fbefc242f8a8bbeef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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3 . 已知一个表面积为
的球与正三棱柱的各个面都相切,则此正三棱柱的体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c96c94a6a97b34d8ccc793d3be02aff.png)
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4 . 祖暅原理也称祖氏原理,是我国数学家祖暅提出的一个求体积的著名命题:“幂势既同,则积不容异”,“幂”是截面积,“势”是几何体的高,意思是两个同高的立体,如在等高处截面积相等,则体积相等.由曲线
,
,
围成的图形绕y轴旋转一周所得旋转体的体积为V,则V=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c465114dc2665d74246240b1d4d26ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63f162c4846a76cadee56ae2f42e37c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfb4e91d5c6d50ff816b0240c1a7f02.png)
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2024-06-11更新
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252次组卷
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5卷引用:重庆市乌江新高考协作体2023-2024学年高二下学期第二阶段性学业质量联合调研抽测(5月)数学试题
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5 . 如图,边长为2的正方形
中,
分别是
的中点,将
分别沿
折起,使
重合于点
,则三棱锥
的外接球的体积为__________ ;设直线
与平面
所成角分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0890d955d54daafbaf9e9662ea23ecb.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0a181fb3a5a51245c82f94eebadcab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e1b35ce4e9edff774c986d78e4b39f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fd1bc6147d69777b26a35d48522f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0368bbedfea716e7af7919d7d4ca842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ba63ad02b1d5af2982fac3d91eb15c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0890d955d54daafbaf9e9662ea23ecb.png)
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6 . 已知三棱锥
的四个顶点均在球O上,
平面
为等腰直角三角形,A为直角顶点.若
,且
,则球O的表面积为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1258223a94b8d5790053de9c640db8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0470bb4b86ddf002cc5b146c2abe47a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced1596b1848adb52de3d0943b9fc5f2.png)
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7 . 已知三棱锥
,
为
中点,
,
,且
,
,
,
,则三棱锥
外接球的表面积为______ ,过点
的平面截该三棱锥外接球所得截面面积的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d9ef979b9f27a28cbda6923e888ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d900531973c546625694146fa1509ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd3eb538f36e6e722e4ce125266b99b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3755b2bcf7516eedb26a27ad73657216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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8 . 四棱锥
的底面
为正方形,
平面
,且
,
.四棱锥
的各个顶点均在球O的表面上,
,
,则直线l与平面
所成夹角的范围为________ .
![](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/364d6c88726d8c3bb8ed297057332bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36671a5652834ef8b3984fa76643ce5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8adb2e669e789bb6eb154f7d1defb7bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
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2024-05-27更新
|
460次组卷
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3卷引用:重庆市乌江新高考协作体2024届高考模拟监测(二)数学试题
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9 . 已知正方体
的体积为8,且
,则当
取得最小值时,三棱锥
的外接球体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672a0ac4bc62eaf00f64faf4a561fe92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f65d6c33ad1f9b19d90e5fac8ce84fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146ea37856f1603b89c7db7d8e96093d.png)
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2024-05-24更新
|
466次组卷
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2卷引用:重庆市西南大学附属中学校2024届高三下学期全真模拟集训(四)数学试题
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10 . 已知长方体全部棱长的和为12,表面积为3,则该长方体的外接球的表面积为______ .
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