侧棱长为3,底面边长为
正四棱柱的体积为_____ ;外接球表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
更新时间:2021-07-23 22:38:13
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【推荐2】如图,一个几何体的上半部分是一个圆柱体,下半部分是一个圆锥体,圆柱体的高为
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【推荐1】已知三棱锥
中,侧棱
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【推荐2】已知三棱锥
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【推荐1】已知长方体的长、宽、高分别为
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【推荐2】已知三棱锥P-ABC中,PA⊥平面ABC,AB⊥AC,AB=AC=2,且三棱锥P-ABC外接球的表面积为
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