三棱锥
中,
,
,
,则该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/9408b43b0530fd885cc8f2d61cacfafd.png)
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2023·安徽安庆·模拟预测 查看更多[2]
更新时间:2023-04-16 11:04:57
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【推荐1】
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【推荐2】已知
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【推荐2】我国汉代数学家赵爽为了证明勾股定理,创造了一幅“勾股圆方图”,后人称其为“赵爽弦图”.类比赵爽弦图,用3个全等的小三角形拼成了如图所示的等边
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【推荐2】所谓正三棱锥,指的是底面为正三角形,顶点在底面上的射影为底面三角形中心的三棱锥,在正三棱锥
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