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作者：
Ooi Soo Huat
主題：
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GeoGebra
最新資源
Perimeter of Rectangle
seo tool
Building Triangles with Set Areas
Building Trapezoids with Set Areas
Area of a Circle Illustrated
探索資源
Example 2
colorRegion
Prove Congruence 4
Inscribed triangle
Condition of parallelism and perpendicularity of lines in terms of their slopes
探索主題
黎曼和（Riemann Sum）
算術運算
正三角形
3D 向量（三維）
一般四邊形