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立体图形都有哪些
更新时间: 2020-06-29 00:00:00  

答案如下:

长方体:底面为长方形的直四棱柱,由六个面组成,相对的面面积相等;

三棱锥:由四个三角形组成,固定底面时有一个顶点,不固定底面时有四个顶点;

球:以半圆的直径所在直线为旋转轴,半圆面旋转一周形成的旋转体,也叫做球体;

四棱锥:由四个三角形和一个四边形构成的空间封闭图形;

正四棱锥:底面为正方形,四个三角形为全等三角形且是等腰三角形。

关键词: 立体 图形 哪些

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