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量角器(Protractor)
Author:
官長壽(sosolong)
GeoGebra
New Resources
圓的基本性質
折扣
盈利與虧蝕
第三周作业效果演示
第八周作业
Discover Resources
heart
代數運算：外心座標
glt-c05-04 三角錐旋轉
除法Q3
同心圓
Discover Topics
Set Theory
Sequences and Series
Arithmetic Mean
Geometric Mean
Subtraction