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圖一
Author:
GeoGebra Institute of Hong Kong
Topic:
Circle
GeoGebra
New Resources
第八周作业
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
柱體建築師
球體建築師
Discover Resources
Proof of Pythagoras Theorem(1) 畢氏定理的証明(1)
梯形堆垛
正三角形繞正方形旋轉
桃子Peach
比較五件物件的重量
Discover Topics
Real Numbers
Square
Cone
General Quadrilateral
Scatter Plot