檢視正三棱锥的原始碼

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中文名称；正三棱锥

外文名称；regular triangular pyramid

特点；锥体中底面是等边三角形

定义；正三棱锥不等同于正四面体

性质；底面是等边三角形
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'''正三棱锥'''是锥体中底面是正三角形，三个侧面是全等的等腰[[三角形]]的三棱锥。正三棱锥不等同于正四面体，正四面体必须每个面都是全等的[[等边三角形]]。<ref>[https://qb.zuoyebang.com/xfe-question/question/8fdc3a566eb2086e6bab7cabade4be10.html 正三棱锥定义],作业帮 , 2017年10月15日</ref>