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P2 時距計算機
Author:
Chan Pui Chuen
GeoGebra
New Resources
Nested spiral octagon
找出對稱軸
兩組對邊相等的四邊形
算柱 (兩位數)
近似值：有效數字
Discover Resources
磁磚著色
王宏銘Proof93
BkD_act15_02c
我的第一个GGB绘本
旋转的台阶
Discover Topics
Statistical Characteristics
Polynomial Functions
Arithmetic Operations
Right Triangles
Perimeter