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正二十面體
Author:
侯杰材
正二十面體
GeoGebra
New Resources
判斷球體
錐體建築師
球体的体积推导（优化版）
兩組對邊相等的四邊形
拼砌四邊形
Discover Resources
陳彤恩GGB 1/24
大小相同串珠
省政信箱
五点共圆
a sin(bx+c) + d 的圖形的副本
Discover Topics
Division
Root
Confidence Interval
Rectangle
Solids or 3D Shapes