天气预报 > 教育 > 正四棱柱就是正方体吗
正四棱柱就是正方体吗
更新时间: 2021-02-02 13:18:13  

1、正四棱柱不是正方体。

2、上、下底面都是正方形,且侧棱垂直于底面的棱柱叫做正四棱柱。正四棱柱是平行六面体的一种特殊情况。简单的说,正四棱柱进一步是长方体的特殊情况。设其底边长为a,侧棱长为h,则其体积可表示为V=a*a*h。侧面积为底面周长*斜高,即S=4a*h。

关键词: 就是 正方体

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