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勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
Author:
魏子翔
GeoGebra
New Resources
球體建築師
判斷球體
四邊形的特性
Nested spiral octagon
第八周作业
Discover Resources
task2
圆在多边形上滚动
动圆在定圆上滚动
直线与圆的位置关系
小正多边形在大正多边形内的滚动（边长不相等）
Discover Topics
Arithmetic
Fractions
Unit Circle
Vectors 2D (Two-Dimensional)
Quadratic Equations