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Circumference 圓周
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
Nested spiral octagon
畫出對稱圖形
美國國旗 (Claude 版)
第八周作业
兩組對邊相等的四邊形
Discover Resources
對角線
ghseh 二次函數動畫左右平移
翹翹板
n等分单位圆作正弦曲线
Addition and Subtraction of Directed Numbers (2)
Discover Topics
Continuity
Function Graph
Arithmetic
Mode
Kite