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GeoGebra
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Area of shapes
Author:
helenzhu1994
GeoGebra
New Resources
第八周作业
常见四边形是否是双心四边形
圓的基本性質
平行線的判定
科赫雪花
Discover Resources
Rectangle
正四棱錐
線性規劃(半平面)
對稱圖形
推移（x 方向）的副本
Discover Topics
Inequalities
Rhombus
Rectangle
Quadratic Functions
Vectors 3D (Three-Dimensional)