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正四面體
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
球体的体积推导
画直线等分三角形的面积
球體建築師
球体的体积推导（优化版）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
Nets of the cube
堆疊正立方體
勾股定理
GeoGebra研習作品
S6G6时间轴——历史上的名人
Discover Topics
Perimeter
Arithmetic Operations
Hypothesis Testing
Diagrams
Constructions