只知道三棱锥四面体的6条棱长，怎么求体积？外接球与内切球半径的计算，有没有基于棱长的公式？ 知乎 Sketch Coloring Page

只知道三棱锥四面体的6条棱长，怎么求体积？外接球与内切球半径的计算，有没有基于棱长的公式？ 知乎 Template

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tomski只知道三棱锥四面体的6条棱长，怎么求体积？外接球与内切球半径的计算，有没有基于棱长的公式？ 知乎 coloring

正三棱锥的高为1，底面边长为2√6，内有一个球与它的四个面都相切，求：三棱锥的表面积．内切球的半径．百度教育 sketch template

只知道三棱锥四面体的6条棱长，怎么求体积？外接球与内切球半径的计算，有没有基于棱长的公式？ 知乎 sketch template

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深入浅出数学系列立体几何（3）：正四面体的性质 知乎 sketch template

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只知道三棱锥四面体的6条棱长，怎么求体积？外接球与内切球半径的计算，有没有基于棱长的公式？ 知乎 sketch template

一个三棱锥的各棱长均相等其内部有一个内切球即球与三棱锥的各面均相切球在三棱锥的内部且球与三棱锥的各面只有一个交点过一条侧棱和对边的 sketch template

已知任意一个四面体的六条棱长，如何求出其体积？ 知乎 sketch template

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$三条侧棱两两垂直的正三棱锥其俯视图如图所示主视图的边界是底边长为2的等腰三角形则主视图的面积等于$frac{{sqrt{6}}}{3 sketch template$

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下面有四个�题1各个侧面都是等腰三角形的棱锥是正棱锥2三条侧棱都相等的棱锥是正棱锥3底面是正三角形的棱锥是正三棱锥4 sketch template

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