1 . 在空间直角坐标系中,已知
,则四面体ABCD外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3ec05187fced55230215fb95b46c4d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 设一个简单几何体的表面积为
,体积为
,定义系数
,已知球体对应的系数为
,定义
为一个几何体的“球形比例系数”.
(1)计算正方体和正四面体的“球形比例系数”;
(2)求圆柱体的“球形比例系数”范围;
(3)是否存在“球形比例系数”为0.75的简单几何体?若存在,请描述该几何体的基本特征;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e32d2d3759b3edd79ef82c1f61d3f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb75fdaefb95f5061a0b33c2559f446b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d66edadaad08a904172a9c162529b57.png)
(1)计算正方体和正四面体的“球形比例系数”;
(2)求圆柱体的“球形比例系数”范围;
(3)是否存在“球形比例系数”为0.75的简单几何体?若存在,请描述该几何体的基本特征;若不存在,说明理由.
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3 . 如图,在三棱锥
中,
,
,
为
的中点,
,
与平面
所成的角为
,则三棱锥
外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea4fa1cb7536e252a7aa7655016ad72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4f5cdf18c053283a4122005414b825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa11c9612235a7200bfb2b6464d4b83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知三棱锥
,
平面
,
,
,若三棱锥外接球的表面积为
,则此三棱锥的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3e9ef3e849788645552cfb0735d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843cb982bb9f03500f1e300af3492c5f.png)
A.1 | B.2 | C.3 | D.4 |
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5 . 已知四棱锥
的各顶点在同一球面上,若
,
为正三角形,且面
面
,则该球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc4d546ee9c19e7ea16f90595b887d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 在平行四边形
中,
,沿
将
折起,则三棱锥
的体积最大时,三棱锥
外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee58ce6fc99dab86a21e8d72bd6bd193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
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2卷引用:内蒙古名校联盟2024届高三下学期联合质量检测文科数学试题
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7 . 三棱锥
中,
,且
两两垂直.设三棱锥
的外接球和内切球的表面积分别为
和
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bccf7f2ab49f7615b72b6312ec58898f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b4c1ae9c57d51e27bbdb001122d3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bb1063e139610045f3bca5ca0b2766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfed7c5c9bcfcad494834d43a17fdb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d201c61dcba1051e424e9051efaa589d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bccf7f2ab49f7615b72b6312ec58898f.png)
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3卷引用:陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题
陕西省西安市第一中学2024届高三下学期高考预测数学(文科)试题陕西省安康市高新中学、安康中学高新分校2024届高三下学期5月模拟预测数学(理)试题(已下线)专题07 球与几何体的切、接及立体几何最值问题-期末考点大串讲(苏教版(2019))
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8 . 在棱长为 1 的正方体
中,已知
分别为线段
的中点,点
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85789b7d63712c81dcc0fb60014bbb8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b829ac65651fac7a19a0b837939c3ff.png)
A.当![]() ![]() |
B.当![]() ![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() |
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9 . 如图,在正四棱台
中,
,
.若该四棱台的体积为
,则该四棱台的外接球表面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570f8b295ee0c7c60e6fe1dbf054ff52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa0d73f30a242947aaf7da525926266.png)
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10 . 在三棱锥中
,
,且
.记直线
,
与平面
所成角分别为
,
,已知
,当三棱锥
的体积最小时,则三棱锥
外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4959250cb4f4289b7c5400c7bee0426.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/5ae8179359f73d7202df34aa62748c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
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