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作者：
Hlho
GeoGebra
最新資源
WC 2018
Loyd's Two-Greek-Crosses-to-a-Square Dissection
רישום חופשי
အခြေခံ data အခေါ်အဝေါ်များ
Weighing Scales: Lessons and Practices
探索資源
true/circumcircle-3-parabola-tangent.ggb
Project
proof-pt
Transformations: Reflect about a line
Regular Tessellations and Why Not Regular Pentagon?
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矩形
內切圓
體積
微積分
正切函數