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GeoGebra
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GeoGebra
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正20面體展開
Author:
GEOGEBRA啟
GeoGebra
New Resources
三位數除以一位數（一）
第八周作业
兩位數除以一位數（二）
畫出對稱圖形
找出對稱軸
Discover Resources
柏拉圖宇宙模型
Ratio of angles at the centre and the length of the arcs.
正七角錐(旋轉，實體、透視)
PIAY
GeoGebra课程的使用
Discover Topics
Polygons
Stochastic Process or Random Process
Ratios
Area
Arithmetic Operations